Validity of self-reported weight, height and body mass index among African American breast cancer survivors

Details

• Alternative Title:
  J Cancer Surviv
• Personal Author:
  Qin, Bo ; Llanos, Adana A.M. ; Lin, Yong ; Szamreta, Elizabeth A. ; Plascak, Jesse J. ; Oh, Hannah ; Pawlish, Karen ; Ambrosone, Christine B. ; Demissie, Kitaw ; Hong, Chi-Chen ; Bandera, Elisa V.
• Description:
  Purpose
  
  Self-reported weight, height and body mass index (BMI) are commonly used in cancer epidemiology studies, but information on the validity of self-reports among cancer survivors is lacking. This study aimed to evaluate the validity of these self-reported measures among African American (AA) breast cancer survivors, known to have a high obesity prevalence.
  
  Methods
  
  We compared the self-reported and measured values among 243 participants from the Women’s Circle of Health Follow-Up Study (WCHFS), a population-based longitudinal study of AA breast cancer survivors. Multivariable-adjusted linear regressions were used to identify factors associated with reporting errors. We also examined the associations of self-reported and measured BMI with obesity-related health outcomes using multivariable logistic regressions, with hypertension as an example, to evaluate the impact of misreporting.
  
  Results
  
  We found that self-reported and measured values were highly correlated among all and when stratified by participants’ characteristics (intraclass correlation coefficients ≥0.99, 0.84 and 0.96 for weight, height and BMI, respectively). The agreement between BMI categories (normal, overweight and obese) based on self-reported and measured data was excellent (kappa=0.81). Women who were older, never smoked, had higher grade tumors or greater BMI tended to have over-estimated BMI calculated from self-reported weight and height. The BMI-hypertension association was similar using self-reported (OR per 5 kg/m2 increase: 1.63; 95% CI: 1.27–2.10) and measured BMI (1.58; 95% CI: 1.23–2.03).
  
  Conclusions
  
  Self-reported weight, height and BMI were reasonably accurate in the WCHFS.
  
  Implications
  
  Our study supports the use of these self-reported values among cancer survivors when direct measurements are not possible.
  
  
• Subjects:
  Adult Aged Black Or African American Body Height Body Mass Index Body Weight Breast Neoplasms/ethnology Breast Neoplasms/rehabilitation Cancer Survivors/psychology Cancer Survivors/statistics & Numerical Data Female Follow-Up Studies Humans Longitudinal Studies Middle Aged Prevalence Reproducibility Of Results Self Report

  More +
• Source:
  J Cancer Surviv. 12(4):460-468
• Pubmed ID:
  29536415
• Pubmed Central ID:
  PMC6054548
• Document Type:
  Journal Article
• Funding:
  U58 DP003931/DP/NCCDPHP CDC HHS/United States ; K01 CA193527/CA/NCI NIH HHS/United States ; P30 CA016056/CA/NCI NIH HHS/United States ; P30 CA072720/CA/NCI NIH HHS/United States ; P01 CA151135/CA/NCI NIH HHS/United States ; HHSN261201300021C/CA/NCI NIH HHS/United States ; HHSN261201300021I/CA/NCI NIH HHS/United States ; R01 CA185623/CA/NCI NIH HHS/United States ; R01 CA100598/CA/NCI NIH HHS/United States
• Volume:
  12
• Issue:
  4
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:d26db77917dfa2db39ef700337f2c39e960cf04f6e2b05c6a8ca48c7d8f87279
• Download URL:
  https://stacks.cdc.gov/view/cdc/57442/cdc_57442_DS1.pdf
• File Type:
  [PDF - 106.79 KB ]