Table 3.

Summary of Postpartum Smoking Relapse by Point Prevalence

Outcome	Total	Progesterone n = 24	Placebo n = 22	p a
PP abstinent at 4 weeks, n (%)
ITT				.7462
Yes	33 (71.7)	18 (75.0)	15 (68.2)
No	13 (28.3)	6 (25.0)	7 (31.8)
Modified ITTb				1.0000
Yes	33 (73.3)	18 (75.0)	15 (71.4)
No	12 (26.7)	6 (25.0)	6 (28.6)
PP abstinent at 12 weeks, n (%)
ITT				.3945
Yes	22 (47.8)	13 (54.2)	9 (40.9)
No	24 (52.2)	11 (45.8)	13 (59.1)
Modified ITTb				.5544
Yes	22 (48.9)	13 (54.2)	9 (42.9)
No	23 (51.1)	11 (45.8)	12 (57.1)

ITT = Intent to treat; PP abstinence = 7-day point prevalence (a single puff or more of a lit cigarette during the 7 days prior to a specific time point is defined as relapse).

^aFisher’s exact test.

^bOne participant excluded due to smoking at week 0.