Prev Chronic DisPreventing Chronic Disease1545-1151Centers for Disease Control and Prevention203946972879990PCDv73_09_0123Original ResearchPeer ReviewedFactors Associated With Cervical Cancer Screening in Puerto RicoOrtizAna P.PhD, MPHUniversity of Puerto Rico Comprehensive Cancer Center and University of Puerto Rico Medical Sciences Campus
ana.ortiz7@upr.eduPMB 711, 89 De Diego Ave, Ste 105, San Juan, Puerto Rico 00927-6346787-758-2525, ext 1471
HeblSarahTufts University School of Medicine, Boston, MassachusettsSerranoRubyMS, DrPHPuerto Rico Behavioral Risk Factor Surveillance System, Puerto Rico Department of Health, San Juan, Puerto RicoFernandezMaría E.PhDUniversity of Texas at Houston, Houston, TexasSuárezErickPhDUniversity of Puerto Rico Medical Sciences Campus, San Juan, Puerto RicoTortolero-LunaGuillermoMD, PhDUniversity of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
52010154201073A58Introduction

Racial/ethnic disparities in cervical cancer screening exist in the United States; rates are lowest among women who live in Puerto Rico. We identified factors associated with cervical cancer screening among women aged 18 years or older living in Puerto Rico.

Methods

We included women who participated in the Puerto Rico Behavioral Risk Factor Surveillance System in 2006 who had not had a hysterectomy (n = 2,206). We calculated the weighted population prevalence estimates of Papanicolaou (Pap) test screening in the past 3 years and used logistic regression models to assess factors associated with screening.

Results

Most participants (71.9% [95% confidence interval (CI)Most participants (71.9% [95% confidence interval (CI) = 69.4%-74.4%]) reported having had a Pap test in the preceding 3 years. Factors associated with screening in multivariate analysis included routine checkup in the past year and leisure-time physical activity. Compared with women with a household income less than $15,000, those with higher incomes were more likely to have had a Pap test. Similarly, divorced or separated women were more likely to have been screened (odds ratio [OR] = 1.13; 95% CI = 1.12-1.15) than those who were married/living together. We did not find associations between screening behavior and education, health care coverage, body mass index, or smoking status.

Conclusion

The prevalence of cervical cancer screening in Puerto Rico is below the 90% recommendation established by Healthy People 2010. Our findings regarding factors associated with Pap screening behavior identified population subgroups who are underscreened and who may benefit from targeted interventions and screening programs.

Introduction

In the United States, the incidence of cervical cancer among Hispanics (14.2 per 100,000) is almost double that of non-Hispanic whites (7.3 per 100,000); the death rate for Hispanics (3.4 per 100,000) is also 50% higher than for non-Hispanic whites (2.3 per 100,000) (1). Despite the overall decline in cervical cancer incidence and deaths in the United States in the last few decades, Hispanic women are less likely to be diagnosed with localized disease and have poorer survival rates than non-Hispanic whites (1,2). Cervical cancer is the 6th most common cancer among Hispanic women and ranks only 13th among cancers for non-Hispanic whites (2). In Puerto Rico, cervical cancer is the fourth most commonly diagnosed cancer in women, accounting for 4% of all newly diagnosed cancers and 2% of all cancer-related deaths among women (3).

The use of the Papanicolaou (Pap) test has resulted in a substantial decline in cervical cancer illnesses and deaths over recent decades (2). In the United States, lack of cervical cancer screening is the most powerful predictor of cervical cancer; thus, disparities in Pap test coverage influence disparities in cervical cancer (4). Despite the accessibility of this screening method, racial/ethnic disparities exist in its use in the United States (5). For example, in 2004, women living in Puerto Rico had the lowest prevalence of having had a recent (last 3 years) Pap test (73%) when compared with non-Hispanic whites (87%), African Americans (89%), and Hispanics (87%) living in the United States (excluding US territories) (6). Among Hispanics and other racial/ethnic groups in the United States, sociodemographic factors such as older age, lower income, lower education level (particularly those who did not graduate from high school), and lack of health care coverage have been positively correlated with a lower rate of Pap screening (7,8). In addition to sociodemographic factors, psychosocial factors such as embarrassment, language barriers, fear, lack of knowledge, and perceived partner disapproval influence Hispanic women's use of Pap screening (9).

To the best of our knowledge, no study has explored the factors influencing Pap test use among women in Puerto Rico. The purpose of this study was to determine the factors associated with self-reported recent Pap test (within 3 years before the interview) among women aged 18 years or older living in Puerto Rico who participated in the Puerto Rico Behavioral Risk Factor Surveillance System (PR-BRFSS). The results of our study are needed to elucidate barriers to cervical cancer screening in the Hispanic population of Puerto Rico. Our objectives are in alignment with the National Breast and Cervical Cancer Early Detection Program's goal of reducing racial disparities in screening and early detection and with the Healthy People 2010 goal of reducing health disparities (10). In addition, this study contributes to meeting the objective of the Puerto Rico Comprehensive Cancer Control Plan (11) of increasing the proportion of women aged 18 years or older who receive a Pap test consistent with current recommendations.

Methods

For this study, we used 2006 data from the PR-BRFSS (12). The PR-BRFSS is part of the national BRFSS, a state-based system of health surveys established in 1984 by the Centers for Disease Control and Prevention to collect information on health risk behaviors, preventive health practices, and health care access primarily related to chronic disease and injury. This cross-sectional survey is conducted annually among noninstitutionalized adults, aged 18 years or older, in all 50 states, the District of Columbia, Puerto Rico, the US Virgin Islands, and Guam. The institutional review board of the University of Puerto Rico Medical Sciences Campus approved this study.

The women eligible for this study had participated in the 2006 PR-BRFSS, were aged 18 years or older, had no history of hysterectomy, and had responded to the question of whether or not they had had a Pap test in the past 3 years before the interview. Among the 3,040 women aged 18 years or older who participated in the PR-BRFSS in 2006, we excluded 710 women who had had a hysterectomy and 124 women with missing information regarding age (n = 16), Pap test history (n = 38), time since last Pap test (n = 31), or hysterectomy status (n = 39), which left a final study sample of 2,206 women.

The outcome variable of interest for this analysis was the proportion of women who had had a Pap test in the 3 years before the interview. Factors of interest included demographic characteristics, such as age in years (18-20, 21-30, 31-40, 41-50, 51-60, ≥61), marital status (married/living together, divorced/separated, widowed, single), educational attainment (less than high school graduate, high school graduate/General Educational Development certification, some college/technical school, college graduate), household income (<$15,000, $15,000-$34,999, $35,000-$49,999, ≥$50,000), health care coverage (yes/no), employment status (currently employed, unemployed, homemaker or retired, unable to work, student), and number of children living in the household (0, 1, 2, ≥3). Clinical characteristics included body mass index (BMI, categorized as normal or underweight [18.5-24.9 kg/m2], overweight [25.0-29.9 kg/m2], or obese [≥30.0 kg/m2]), routine checkup in the past year (yes/no), and perceived general health status (fair or poor, good or excellent). Lifestyle characteristics included current smoking status (yes/no), binge drinking (4 or more drinks on 1 occasion [yes/no]), and leisure-time physical activity in the past 30 days (yes/no).

We conducted the statistical analysis by using SAS version 9.2 (SAS Institute, Inc, Cary, North Carolina) and Stata version 10.0 (StataCorp LP, College Station, Texas). We first described the study sample according to demographic, clinical, and lifestyle characteristics by using the survey frequency function in SAS. We then assessed the relationship between cervical cancer screening behavior and the demographic, clinical, and lifestyle factors by using contingency tables and Pearson's χ2 tests, which also required the use of the survey frequency function. To further assess these relationships, we used the generalized linear model procedure in Stata to construct simple and multivariable logistic regression models (13). We estimated the prevalence odds ratios and their 95% confidence intervals to determine the magnitude of the association between the specific factors and cervical cancer screening behavior. The variables significantly associated with cervical cancer screening (P < .05) in the age-adjusted logistic regression models were included in the multivariable logistic regression models; those with at least marginal significance (P < .10) in the multivariate model were retained in the model. All data were weighted according to the respondent's age and the inverse of her probability of selection by using the 2006 census population projections. Detailed information about BRFSS weighting procedures can be found in the BRFSS operational guide (14).

Results

Approximately half of the women were aged 40 years or younger and were married or living as a couple  (Table 1). Most had a household income of less than $35,000 a year, and almost all reported having health care coverage. Two-thirds of women reported that they were in good to excellent general health; 81% had a routine checkup in the previous year, 82% had at least 1 Pap test in their lifetime, and 72% had a Pap test in the past 3 years.

In the bivariate analysis, Pap screening in the past 3 years was significantly associated (P < .05) with age, marital status, education level, household income, employment status, number of children in the household, BMI, routine physical examination in the past year, health status, and leisure-time physical activity. Lower rates of Pap screening were observed in younger women, single women, women with a household income less than $15,000, women with some college or technical school education, and students (Table 2). In addition, lower rates of Pap test screening were reported by underweight or normal-weight women, women who had not had a routine medical checkup in the prior year, and those who reported no leisure-time physical activity. Pap screening was not associated with smoking status, health care coverage, binge drinking, or heavy alcohol consumption.

We found no significant interactions in the multivariate model (likelihood ratio χ2 = 70.13, P = .17). Compared with younger women (aged 18-20 years), older women (aged ≥21 years) were 2 to 5 times as likely to have had a Pap test in the last 3 years (Table 3). In addition, compared with women with the lowest household income, women with larger household incomes were also more likely to have had a Pap test in the past 3 years. Single women (never married) and widows were less likely than married women to have had a Pap test in the past 3 years.

Discussion

In 2006, Puerto Rico fell short of meeting the Healthy People 2010 goal of a 90% Pap test screening rate for women aged 18 years or older (15). Our study shows that younger (aged ≤30 years) and older (aged ≥61 years) Puerto Rican women reported lower rates of cervical cancer screening than women aged 31 to 60 years. These results are consistent with the overall screening patterns in the United States (16) and among Hispanic women in the rest of the United States (8). Of interest is the low prevalence of screening among women aged 18 to 20 years in Puerto Rico observed in our study (9%). This prevalence is consistent with the low rate of cervical cancer screening among women aged 18 to 24 years in Puerto Rico (41%) reported by the BRFSS for 2004, which in addition is much lower than the screening rate of their counterparts in the rest of the United States (median = 81%), a pattern that has been consistent since 1996 (6). In addition, women with a household income of at least $35,000 were 2 to 3 times as likely to have been screened as those with the lowest household income. Household income has been positively correlated with cervical cancer screening in multiple studies (10,16-17), an association that could be partially explained by improved access to care with increasing wealth.

In contrast to results in other populations, our study found no substantial positive effect of education, employment status, or health care coverage on screening practices (7,8,16,17). Although the reasons for the lack of association between screening behavior and education and employment are unknown, for health care coverage the lack of association may be explained by the high prevalence of women in our study who had health care coverage (94%). The health care reform legislation passed in Puerto Rico in 1993 made health insurance available for underserved populations in Puerto Rico at or below 200% of the poverty level.

Routine checkup in the past year increased the likelihood of having been screened, a result consistent with other studies (8,18). This finding is not surprising since cervical cancer screening is often recommended by the doctor during the clinical visit. Participating in leisure-time physical activity increased the likelihood of screening in our study by more than 60%, a result consistent with that of another recent study that found that exercise was positively associated with breast and cervical cancer screening (7). This previous study also found a positive association between nonsmoking and screening. Our research, however, did not observe this association. Although studies have consistently shown an inverse relationship between obesity and screening behavior (decreased cervical cancer screening with increasing body size) (19), we found no association between BMI and cervical cancer screening in multivariate analysis. While in some groups higher weight may be associated with less emphasis on health and thus less screening, our findings may reflect a cultural norm of acceptance of a larger body weight/body size in Puerto Rican women similar to that found is some populations of black women in the United States (20).

Our study is subject to limitations. First, because the BRFSS is a telephone-based survey, it includes data only from residents who have a working home telephone and, thus, is unable to survey those who reside in households without telephone access. Consequently, the above data may not be generalizable to the entire adult Puerto Rican female population. Evidence suggests that income is positively associated with a recent Pap test. Since women who do not have telephones are more likely to have lower incomes, they likely also have lower Pap screening rates than women who participated in the study (8). Nonetheless, response rates in the 2006 PR-BRFSS were much higher (74%) than the median reported for BRFSS surveys in all other US states and territories of the United States for the same year (51%) (21). Finally, the prevalence estimates were based on self-reported information, which is subject to recall bias and social desirability bias.

Our study shows that the rates of cervical cancer screening in Puerto Rico are lower than those in the United States, and well below the 90% goal established by Healthy People 2010. We have identified factors associated with Pap test screening in Puerto Rico that help identify subgroups of the population who are underscreened and who would benefit from targeted interventions. Interventions should focus on increasing screening rates, particularly among young and low-income women. Future studies should also focus on other psychosocial correlates of screening, including attitudes, beliefs, and cultural norms regarding screening practices. Studies of the effect of social determinants of health, such as area of residence (rural vs urban) and migrant status, are warranted in this population, since these factors influence screening behavior (17,22). In addition, public health policy regarding universal mandatory cervical cancer screening coverage in Puerto Rico should be implemented.

This work was funded by the following grants: National Cancer Institute (U54CA96297 and UO1CA86117-01), National Center for Research Resources (G12RR03051), and Centers for Disease Control and Prevention (5U58DP222931-05), and by an unrestricted educational grant from Bristol-Myers Squibb, Puerto Rico. We also acknowledge the support from the Biostatistics and Bioinformatics Core of the U54 grant, a partnership between the University of Puerto Rico and MD Anderson Cancer Center (NIH NCI U54CA96297) for the review of this manuscript.

The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the US Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above. URLs for nonfederal organizations are provided solely as a service to our users. URLs do not constitute an endorsement of any organization by CDC or the federal government, and none should be inferred. CDC is not responsible for the content of Web pages found at these URLs.

Suggested citation for this article: Ortiz AP, Hebl S, Serrano R, Fernandez ME, Suárez E, Tortolero-Luna G. Factors associated with cervical cancer screening in Puerto Rico. Prev Chronic Dis 2010;7(3) http://www.cdc.gov/pcd/issues/2010/may/09_0123.htm. Accessed [date].

Cancer facts and figures for Hispanics, 2006-2008Accessed June 18, 2009Atlanta (GA)American Cancer Societyhttp://www.cancer.org/downloads/STT/CAFF2006HispPWSecured.pdfHoweHLWuXRiesLACokkinidesVAhmedFJemalA1078200617111742Annual report to the nation on the status of cancer, 1975-2003, featuring cancer among U.S. Hispanic/Latino populationsCancer16958083Cancer of the cervix uteri stat fact sheet, Puerto Rico Central Cancer RegistryPuerto Rico Department of Health2003Accessed June 18, 2009http://www.salud.gov.pr/RCancer/Reports/Pages/default.aspxAkersAYNewmannSJSmithJS3132007157181Factors underlying disparities in cervical cancer incidence, screening, and treatment in the United StatesCurr Probl Cancer17543946SmithRACokkinidesVBrawleyOW59120092741Cancer screening in the United States, 2009: a review of current American Cancer Society guidelines and issues in cancer screeningCA Cancer J Clin19147867Behavioral Risk Factor Surveillance System survey dataAtlanta (GA)US Department of Health and Human Services, Centers for Disease Control and PreventionAccessed May 15, 2007http://apps.nccd.cdc.gov/brfss/race_c.asp?cat=WH&qkey=4426&yr=2004&state=PR&bkey=20047230&qtype= C&yr_c=&state_c=UB&bkey_c=20049930&qtype_c=C&grouping=&resp=1WelchCMillerCWJamesNT37120085157Sociodemographic and health-related determinants of breast and cervical cancer screening behavior, 2005J Obstet Gynecol Neonatal NursCoughlinSSUhlerRJ3422002242251Breast and cervical cancer screening practices among Hispanic women in the United States and Puerto Rico, 1998-1999Prev Med11817921FernándezMEGonzalesATortolero-LunaGWilliamsJSaavedra-EmbesiMChanW9952009936943Effectiveness of cultivando la salud: a breast and cervical cancer screening promotion program for low-income Hispanic womenAm J Public Health19299678AdamsEKBreenNJoskiPJ1092 Suppl2007348358Impact of the National Breast and Cervical Cancer Early Detection Program on mammography and Pap test utilization among white, Hispanic, and African American women: 1996-2000Cancer171367662008San Juan (PR)Comprehensive Cancer Control CoalitionPuerto Rico Comprehensive Cancer Control Plan, 2008-2012Atlanta (GA)US Department of Health and Human Services, Centers for Disease Control and PreventionBehavioral Risk Factor Surveillance System survey dataAccessed February 18, 2010http://apps.nccd.cdc.gov/brfss/page.asp?cat=XX&yr=2006&state=PR#XXHosmerDLemeshowS2000New York (NY)John Wiley & Sons, Inc2nd edition3146Applied logistic regressionAtlanta (GA)US Department of Health and Human Services, Centers for Disease Control and PreventionBehavioral Risk Factor Surveillance System operational and user's guide, version 3.0Accessed February 18, 2010ftp://ftp.cdc.gov/pub/Data/Brfss/userguide.pdfHealthy people 2010. Volumes I and IIUS Department of Health and Human Services2001Accessed June 18, 2009http://www.healthypeople.gov/Document/tableofcontents.htm#underCoughlinSSLeadbetterSRichardsTSabatinoSA6622008260275Contextual analysis of breast and cervical cancer screening and factors associated with health care access among United States women, 2002Soc Sci Med18022299CoughlinSSKingJRichardsTBEkwuemeDU1511200621542159Cervical cancer screening among women in metropolitan areas of the United States by individual-level and area-based measures of socioeconomic status, 2000 to 2002Cancer Epidemiol Biomarkers Prev17119040ShahMZhuKWuHPotterJ4222006146149Hispanic acculturation and utilization of cervical cancer screening in the USPrev Med16297444CohenSSPalmieriRTNyanteSJKoralekDOKimSBradshawP1129200818921904Obesity and screening for breast, cervical and colorectal cancer in women: a reviewCancer18361400AndersonLAEylerAAGaluskaDABrownDRBrownsonRC3542002390396Relationship of satisfaction with body size and trying to lose weight in a national survey of overweight and obese women aged 40 and older, United StatesPrev Med12453717KilmerGRobertsHHughesELiYValluruBFanA572008110SS-7Surveillance of certain behaviors and conditions among states and selected local areas — Behavioral Risk Factor Surveillance System (BRFSS), United States, 2006MMWR Surveill Summ18701879CoughlinSSWilsonKM2632002203209Breast and cervical cancer screening among migrant and seasonal farmworkers: a reviewCancer Detect Prev12269767

Characteristics of 2,206 Adult Women With Data on Pap Testing, Puerto Rico Behavioral Risk Factor Surveillance System, 2006a

Characteristicnb% (95% CI)c
Age, y
18-20759 (6.6-10.5)
21-3020918 (15.3-20.0)
31-4040022 (20.1-24.3)
41-5044619 (17.2-20.8)
51-6055319 (17.4-20.8)
≥6152314 (12.2-14.8)
Marital status
Married/living together1,04552 (49.0-54.1)
Divorced/separated49316 (14.7-17.9)
Widowed3439 (7.6-9.7)
Single32324 (20.9-26.0)
Education
Less than high school graduate63222 (19.8-23.4)
High school graduate/GED50123 (21.0-25.3)
Some college/technical school40422 (19.6-24.0)
College graduate66833 (31.0-35.8)
Household income
<$15,00090940 (37.3-42.4)
$15,000-34,99968341 (38.6-44.0)
$35,000-49,9991459 (7.5-10.7)
≥$50,00015010 (8.1-11.4)
Health care coverage
Yes2,09394 (93.1-95.5)
No1106 (4.5-6.9)
Employment status
Currently employed80341 (38.8-43.8)
Unemployed1035 (3.9-6.2)
Homemaker/retired1,04337 (34.8-39.4)
Unable to work1405 (3.9-5.6)
Student11612 (9.7-14.0)
No. of children in household
01,32754 (51.2-56.3)
135420 (17.5-27.8)
234517 (15.4-19.0)
≥31809 (7.9-10.9)
BMI
Underweight or normal weight (18.5-24.9 kg/m2)80545 (42.0-47.3)
Overweight (25.0-29.9 kg/m2)69532 (29.8-34.6)
Obese (≥30 kg/m2)52523 (21.0-25.2)
Routine checkup in the past year
Yes1,75581 (78.8-83.0)
No37219 (17.0-21.2)
General health status
Good to excellent1,29867 (64.8-69.2)
Fair to poor90233 (30.8-35.2)
Ever had a Pap test
Yes1,95782 (79.7-84.4)
No24918 (15.6-20.3)
Had Pap test in past 3 years
Yes1,69572 (69.4-74.4)
No51128 (25.6-30.6)
Binge drinking
Yes1177 (5.6-8.6)
No2,04293 (91.4-94.4)
Heavy alcohol consumption
Yes2,13198 (96.8-98.5)
No442 (1.5-3.2)
Current smoking status
Yes2049 (7.8-10.7)
No1,99991 (89.3-92.2)
Leisure-time physical activity
Yes1,17354 (51.0-56.0)
No1,03247 (44.0-49.0)

Abbreviations: Pap, Papanicolaou; CI, confidence interval; GED, General Educational Development certificate; BMI, body mass index.

Inclusion criteria included no prior hysterectomy and a yes or no response to the BRFSS question regarding having had a Pap test in the past 3 years. All other participants were excluded.

Totals may vary as a result of missing responses, including don't know/not sure and refused.

Weighted population estimates and percentages.

Percentage of Adult Women Who Have Had a Pap Test in the Past 3 Years, Puerto Rico Behavioral Risk Factor Surveillance System, 2006a

Characteristicnb% (95% CI)c
Age (P < .001), y
18-202526 (16.0-35.6)
21-3014764 (56.4-71.3)
31-4032281 (76.0-84.9)
41-5036681 (77.1-85.2)
51-6046183 (79.4-86.4)
≥6137469 (64.2-73.3)
Marital status (P < .001)
Married/living together87483 (80.6-85.9)
Divorced/separated40682 (77.3-85.9)
Widowed24568 (62.2-74.0)
Single16841 (35.0-47.7)
Education (P = .006)
Less than high school graduate45771 (66.7-75.0)
High school graduate/GED38269 (62.9-74.2)
Some college/technical school30667 (61.1-73.1)
College graduate54978 (73.8-82.0)
Household income (P < .001)
<$15,00067270 (66.2-73.7)
$15,000-34,99954673 (68.9-77.6)
$35,000-49,99913487 (79.2-95.3)
≥$50,00012884 (77.1-91.6)
Health care coverage (P = .25)
Yes1,62172 (69.7-74.9)
No7266 (56.1-76.6)
Employment status (P < .001)
Currently employed66179 (75.9-82.9)
Unemployed8576 (65.2-87.7)
Homemaker/retired79977 (73.6-79.6)
Unable to work11080 (72.4-87.0)
Student3926 (17.6-33.8)
Number of children in household (P = .002)
099968 (64.3-71.3)
127975 (69.6-80.7)
228080 (75.3-84.9)
≥313773 (65.1-81.2)
BMI (P < .001)
Under or normal weight (18.5-24.9 kg/m2)60868 (63.5-72.1)
Overweight (25.0-29.9 kg/m2)57480 (75.9-83.6)
Obese (≥30 kg/m2)40374 (69.2-78.7)
Routine checkup in the past year (P < .001)
Yes1,40976 (73.0-78.5)
No24160 (53.6-65.9)
General health status (P = .045)
Good to excellent99970 (67.0-73.6)
Fair to poor69275 (71.8-78.6)
Binge drinking (P = .29)
Yes8766 (55.5-77.2)
No1,57272 (69.5-74.7)
Heavy alcohol consumption (P = .95)
Yes3472 (55.8-88.9)
No1,63972 (69.4-74.4)
Current smoking status (P = .93)
Yes20472 (69.3-74.6)
No1,99972 (64.9-79.6)
Leisure-time physical activity (P = .005)
Yes94575 (72.0-78.5)
No75068 (64.3-71.8)

Abbreviations: Pap, Papanicolaou; CI, confidence interval; GED, General Educational Development certificate; BMI, body mass index.

Data exclude women who had had a hysterectomy.

Totals may vary as a result of missing responses, including don't know/not sure and refused.

Weighted population estimates; women who responded don't know/not sure, or who refused were excluded.

Multivariate Predictors of Having Had a Pap Test in the Past 3 Years Among Adult Women, Puerto Rico Behavioral Risk Factor Surveillance System, 2006a

Predictor VariableMultivariate OR (95% CI)
Age group (P < .001), y
18-201 [Reference]
21-303.54 (3.46-3.62)
31-404.61 (4.50-4.72)
41-503.88 (3.79-3.98)
51-604.26 (4.15-4.37)
≥612.38 (2.31-2.44)
Household income (P < .001)
<$15,0001 [Reference]
$15,000-34,9991.29 (1.28-1.31)
$35,000-49,9992.78 (2.71-2.84)
≥$50,0002.45 (2.39-2.50)
Marital status (P < .001)
Married/living together1 [Reference]
Divorced/separated1.14 (1.12-1.15)
Widowed0.64 (0.62-0.65)
Single0.19 (0.18-0.19)
Routine checkup in the past year (P < .001)
Yes2.52 (2.49-2.55)
No1 [Reference]
Leisure-time physical activity (P < .001)
Yes1.41 (1.40-1.42)
No1 [Reference]

Abbreviations: Pap, Papanicolaou; OR, odds ratio; CI, confidence interval.

Data exclude women who had had a hysterectomy and those who responded don't know/not sure or who refused to answer.