borderline non-significantP =0.050
But there was no clear trend; the HRs were 0.71, 0.48, and 0.82, for monthly, weekly, and daily use, respectively, and the test for trend across categories was borderline non-significant ( P =0.050).
But there was no clear trend; the HRs were 0.71, 0.48, and 0.82, for monthly, weekly, and daily use, respectively, and the test for trend across categories was borderline non-significant ( P =0.050).