Table 4.

Comparison of the percent of treatments shortened according to the age category^a

Age category	% Shortened	OR	95% CI
<45	23.9	1.7	1.57–1.83
45–54	20.3	1.3	1.22–1–39
55–64	15.9	1.0	Ref
65–74	12.0	0.79	0.75–0.84
75–84	9.5	0.66	0.62–0.7
≥85	7.4	0.51	0.47–0.56

^aAlso shown are ORs with 95% confidence intervals for the odds of shortening ≥1 treatment during the month.