Table 2.

Duration of Medication Use by Type (NRT or prescription only) and Source of NRT (OTC or prescription)

Duration of use	NRT (overall, n = 905), %	OTC NRT (n = 621), %	Prescription NRT (n = 284), %	Prescription only (n = 213), %
<1 week	20.0	23.0	13.4	2.3
1–2 weeks	12.5	13.5	10.2	7.0
2–4 weeks	22.9	26.4	15.1	23.9
4–8 weeks	16.0	13.4	21.8	26.3
≥8 weeks	28.6	23.7	39.4	40.4

Note. NRT = nicotine replacement therapy; OTC = over-the-counter.