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Primary Care Physician Supply, Insurance Type, and Late-Stage Cancer Diagnosis
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Details:
  • Personal Authors:
  • Keywords:
  • Pubmed ID:
    25441233
  • Pubmed Central ID:
    PMC4302041
  • Funding:
    5U58DP000795-05/DP/NCCDPHP CDC HHS/United States
    CA105632/CA/NCI NIH HHS/United States
    P50 CA105632/CA/NCI NIH HHS/United States
    R25 CA092408/CA/NCI NIH HHS/United States
    R25CA092408/CA/NCI NIH HHS/United States
  • Document Type:
    Journal Article
  • Collection(s):
    CDC Public Access
  • Description:
    Background

    Understanding the joint effects of insurance type and primary care physician density on stage at diagnosis is essential to elucidating the healthcare access and late-stage cancer relationship.

    Purpose

    To determine if the relationship between primary care physician density and odds of late-stage cancer is modified by insurance type at diagnosis.

    Methods

    Case patients were Ohio adults, diagnosed between 1996 and 2008 with cancer of one of the following sites: the female breast, cervix, colon/rectum, lung/bronchus, melanoma of the skin, oral cavity and pharynx, or prostate (N=376,425). County-level physician density was from Ohio Department of Health. Multilevel logistic regression models estimated odds ratios of latestage cancer diagnosis associated with increases in primary care physician density by insurance type. Analyses were conducted in 2014.

    Results

    Decreases in late-stage diagnosis of cancers of the breast, prostate, melanoma of the skin, oral cavity and pharynx, or lung/bronchus associated with increases in primary care physician density were strongest among those with private insurance, whereas those with Medicare (prostate, oral cavity and pharynx, lung/bronchus), Medicaid (lung/bronchus), uninsured (prostate), and other/unknown (prostate, oral cavity and pharynx, lung/bronchus) did not benefit as greatly or experienced significant increases in late-stage cancer diagnosis (other/unknown [female breast], Medicaid [melanoma of the skin], and uninsured [colon/rectum]).

    Conclusions

    As primary care physician density increases, those with private insurance consistently benefit the most, in terms of late-stage cancer diagnosis, whereas those with several other insurance types experience flatter decreases or significantly higher odds of late-stage cancer diagnosis.

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