From: Birth weight differences between those offered financial voucher incentives for verified smoking cessation and control participants enrolled in the Cessation in Pregnancy Incentives Trial (CPIT), employing an intuitive approach and a Complier Average Causal Effects (CACE) analysis
Primary outcome
All
Smoker
Non-smoker
Randomised group
Control
N = 262
3075 (569)
N = 25
3586 (566)
N = 287
3120 (586)
Incentives
N = 227
3053 (588)
N = 68
3432 (527)
N = 295
3141 (595)
N = 489
3065 (577)
N = 93
3473 (539)
N = 582
3130 (590)