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Table 3 Previous pregnancy(s) and outcomes according to maternal self-reported tobacco use (N = 73)

From: Central Australian Aboriginal women’s pregnancy, labour and birth outcomes following maternal smokeless tobacco (pituri) use, cigarette use or no-tobacco use: a prospective cohort study

Variable Maternal self-reported tobacco use
Total
N = 73
No-tobacco use
n = 31
Chewer
n = 19
Smoker
n = 23
n (column %, 95 confidence interval)
Gravida
 1 19 (27, 18–39) 12 (40, 24–59) 3 (17, 5–42) 4 (18, 7–41)
 2–3 33 (47, 36–59) 13 (43, 27–62) 10 (56, 32–77) 10 (45, 26–67)
 4+ 18 (26,17–37) 5 (17, 7–35) 5 (28, 12–53) 8 (36, 19–59)
 Unknowna 3 1 1 1
Parity
 0 24 (34, 24–46) 17 (57, 38–73) 3 (17, 5–42) 4 (18, 7–41)
 1–2 34 (49, 37–60) 10 (33, 19–52) 12 (67, 42–85) 12 (55, 33–74)
 3+ 12 (17, 10–28) 3 (10, 3–28) 3 (17, 5–42) 6 (27, 12–50)
 Unknowna 3 1 1 1
Birth outcomes
 Livebirths
  0 25 (34, 24–46) 16, (52, 34–69) 3 (16, 5–40) 6 (26, 12–48)
  1–2 33 (45, 34–57) 11 (35, 20–54) 12 (63, 39–82) 10 (43, 25–64)
  3+ 15 (21, 13–32) 4 (13, 5–30) 4 (21, 8–46) 7 (30, 15–52)
Stillbirths 3 1 1 1
Neonatal deaths 2 0 1 1
  1. aUnknown/missing data not included in %