Table 2

 Incidence (95% confidence intervals) of endorsing items or meeting criteria for off-label use*

Repeated non-cessation useRepeated concurrent useMeet criteria for off-label use†
*See text for limitations to the accuracy of these incidence rates.
†Either concurrent use or non-cessation use on a repeated basis.
1 month (n = 535)4%7%8% (5% to 10%)
3 months (n = 364)9%12%16% (12% to 19%)
6 months (n = 209)7%12%14% (10% to 19%)