Table 2. Adjusted mortality rate ratio (MRR) and 95% confidence intervals (CI) for total cancer mortality associated with marital status, California, 2005–2012.

	Total mortality
	No. of deaths	MRRa (95%CI)
Marital status at diagnosis
Married	9304	1.00 (Reference)
All unmarried	13306	1.28 (1.24–1.32)
Single/Separated/Divorced	6941	1.24 (1.20–1.28)
Widowed	6365	1.35 (1.30–1.41)

^aEstimated from Cox proportional hazard models, stratified by stage (AJCC stage I-IV or unknown) and adjusted for: age (continuous); race/ethnicity (NHW, non-Hispanic white, black, Hispanic, Asian/Pacific Islander, other/unknown); tumor subtype HR+/HER2-, HR+/HER2+, HR-/HER2, triple negative, and unclassified); first course of treatment (Y/N for surgery, radiation, hormone therapy); lymph node involvement (negative, positive, unknown); tumor size (continuous); grade (I, II, II/IV, unknown); histology (ductal, lobular, other); insurance status (no insurance, private insurance only, Medicare only/Medicare + private insurance, any public/Medicaid/military insurance, unknown); and neighborhood socioeconomic status (quintiles).