TABLE 2.

Independent behavior regarding medication among respondents

Behavior by age, y	2008	2011	P
Calls in refills (%)
10–12	0	0	ns
13–15	11	8	ns
16–18	13	27	ns
19–21	45	65	ns
>21	76	70	ns
Picks up medication at pharmacy (%)
10–12	0	0	ns
13–15	0	0	ns
16–18	10	15	ns
19–21	47	52	ns
>21	73	60	ns
Remembers to take medication (%)
10–12	26	11	ns
13–15	41	36	ns
16–18	59	57	ns
19–21	84	87	ns
>21	94	100	ns

Independent behavior is considered 4 (“mostly me”) or 5 (“I do it totally myself”) and represents the responsibility for doing the task rather than whether the task was always completed. Percentage is proportion of those who answered 4 or 5 over the total number in that age group that year. There were no significant differences seen in any group. ns = not significant.