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Table 3 Marginal probabilities of smoking cessation and marginal change in number of cigarettes smoked between first and third trimestera

From: Home visiting and perinatal smoking: a mixed-methods exploration of cessation and harm reduction strategies

  Clients Comparisons  
Estimate (95 % CI) Estimate (95 % CI) p-value
Probability of smoking cessation
 <10 cigarettes per day at baseline 0.45 (0.42, 0.49) 0.38 (0.37, 0.40) <0.01
 10–19 cigarettes per day at baseline 0.22 (0.19, 0.25) 0.20 (0.19, 0.22) 0.43
 ≥20 cigarettes per day at baseline 0.16 (0.13, 0.19) 0.12 (0.11, 0.13) 0.01
Change in number of cigarettes smoked
 <10 cigarettes per day at baseline −2.0 (−2.2, −1.8) −1.8 (−2.0, −1.8) 0.17
 10–19 cigarettes per day at baseline −5.0 (−5.4, −4.7) −4.8 (−5.0, −4.6) 0.23
 ≥20 cigarettes per day at baseline −14.0 (−14.9, −13.1) −12.5 (−13.0, −12.0) <0.01
  1. aEstimate obtained from multivariable regression model, adjusted for maternal age at birth, marital status, and prior receipt of Temporary Assistance for Needy Families (TANF)