Relative to the reference, drinking less frequently also showed increased risk for all-cause mortality in the NHIS data, but not in the VA data. Specifically, in the NHIS data relative to drinking 3.2 times weekly, the increased risk in all-cause mortality was HR=1.04 (p=0.05) for individuals who drank once weekly, and HR=1.06 (p<0.01) for individuals who drank once monthly. In the VA data, relative to drinking 2–3 times weekly, drinking 1–2 drinks 2–4 times monthly (HR=1.02, p=0.8) or less than monthly (HR=1.02, p=0.8) did not have a statistically significant increased risk of all-cause mortality.
