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Table 3 Changes in smoking rates, exhaled carbon monoxide levels, level of nicotine dependency, and smoking behaviours of the pregnant women and their significant others who were current smokers at baseline

From: A mixed methods exploratory study tackling smoking during pregnancy in an urban Aboriginal and Torres Strait Islander primary health care service

  Baseline 2 weeks 1 month 3 months 1 month postpartum
n/N % n/N (%) n/N (%) n/N (%) n/N (%)
Pregnant Women (N = 23) (N = 13) (N = 19) (N = 11) (N = 13)
 Self-reported reduction or cessation
  Reduction n/a n/a 13/13 (100) 18/19 (95) 8/10 (80) 10/12 (83)
  Quit attempt n/a n/a 5/13 (38) 8/18 (44) 7/11 (64) 4/13 (31)
  Quit n/a n/a 0/13 (0) 0/18 (0) 4/11 (36) 2/13 (15)
  Reduction and/or quit n/a n/a 13/13 (100) 18/19 (95) 9/11 (82) 10/13 (77)
 Time from waking until 1st cigarette (minutes)
  < 5 4/22 (18) 2/13 (15) 3/18 (17) 0/6 (0) 2/11 (18)
  5–30 8/22 (36) 3/13 (23) 1/18 (6) 0/6 (0) 3/11 (27)
  31–60 1/22 (5) 4/13 (31) 5/18 (28) 4/6 (67) 1/11 (9)
  > 60 9/22 (41) 4/13 (31) 9/18 (50) 2/6 (33) 5/11 (45)
Number of cigarettes smoked each day
  ≤ 10 15/22 (68) 12/13 (92) 14/16 (88) 7/7 (100) 9/12 (75)
  11–20 5/22 (23) 0/13 (0) 1/16 (6) 0/7 (0) 2/12 (17)
  21–30 2/22 (9) 1/13 (8) 1/16 (6) 0/7 (0) 1/12 (8)
  ≥ 31 0/22 (0) 0/13 (0) 0/16 (0) 0/7 (0) 0/12 (0)
Exhaled COppm, mean (SD) 12.4 (5.0) 16.2 (10.6) 16.4 (12.2) 10.7 (12.8) 12.1 (9.8)
HONC score, mean (SD) 6.1 (2.7) n/a n/a 4.9 (2.6) n/a n/a 5.4 (3.3)
Significant Others (N = 13) (N = 7) (N = 7) (N = 5) (N = 5)
Self-reported reduction or cessation
  Reduction n/a n/a 6/7 (86) 7/7 (100) 4/4 (100) 4/5 (80)
  Quit Attempt n/a n/a 2/7 (29) 3/7 (43) 3/5 (60) 3/5 (60)
  Quit n/a n/a 0/7 (0) 0/7 (0) 1/5 (20) 0/4 (0)
  Reduction and/or quit n/a n/a 6/7 (86) 7/7 (100) 5/5 (100) 4/5 (80)
Time from waking until 1st cigarette (minutes)
  < 5 5/12 (42) 3/7 (43) 0/7 (0) 0/4 (0) 1/5 (20)
  5–30 3/12 (25) 1/7 (14) 3/7 (43) 2/4 (50) 0/5 (0)
  31–60 3/12 (25) 1/7 (14) 2/7 (29) 0/4 (0) 2/5 (40)
  > 60 1/12 (8) 2/7 (29) 2/7 (29) 2/4 (50) 2/5 (40)
Number of cigarettes smoked each day
  ≤ 10 5/12 (42) 5/7 (71) 5/6 (83) 3/5 (60) 4/5 (80)
  11–20 3/12 (25) 0/7 (0) 0/6 (0) 0/5 (0) 0/5 (0)
  21–30 3/12 (25) 1/7 (14) 0/6 (0) 1/5 (20) 0/5 (0)
  ≥ 31 1/12 (8) 1/7 (14) 1/6 (17) 1/5 (20) 1/5 (20)
Exhaled COppm, mean (SD) 21.4 (13.3) 27.3 (19.8) 12.7 (9.2) 14.2 (9.2) 16.8 (6.8)
HONC score, mean (SD) 6.1 (2.9) n/a n/a 5.7 (3.2) n/a n/a 7.8 (1.8)
  1. COppm Carbon monoxide part per million, HONC Hooked on Nicotine Checklist, n/a Not available