Skip to main content

Table 1 Epidemiological characteristics of mothers and newborns

From: Maternal cigarette smoking and its effect on neonatal lymphocyte subpopulations and replication

 

Non-smoking mothers (NSM) (n = 111)

Smoking mothers (SM) (n = 58)

Maternal age at birth (years)

31.1 ± 5.7 (31.2; 16.0 – 46.4)

29.0 ± 6.0 (28.2; 18.5 – 40.4)

Cigarettes/day before pregnancy

(n = 10) 11.3 ± 7.3 (12.0; 1.5 -20.0)

(n = 58) 20.0 ± 9.3 (20.0; 2.0 – 40.0)***

Years of tobacco use

9.0 ± 4.4 (10.0; 2.0 – 20.0)

11.5 ± 5.7 (10.0; 2.0 – 24.0)

First trimenon (cigarettes/day)

0

12.3 ± 7.1 (10.0; 2.0 – 30.0)

Second trimenon (cigarettes/day)

0

11.4 ± 6.8 (10.0; 2.0 – 30.0)

Third trimenon (cigarettes/day)

0

11.7 ± 7.3 (10.0; 1.0 – 30.0)

Sex of newborn (male/female) (number)

60/51

37/21

Gestational age (weeks)

39.6 ± 1.4 (39.1; 37.3 – 41.7)

39.5 ± 1.5 (39.4; 37.1 – 41.7)

Birth weight (g)

3379.3 ± 429.9 (3380.0; 2330.0 – 4355.0)

3118.2 ± 497.7 (3040.0; 2190.0 – 4190.0)***1)

Birth length (cm)

50.4 ± 2.0 (51.0; 46.0 – 57.0)

49.1 ± 2.7 (49.0; 43.0 – 55.0)*** 1)

Head circumference (cm)

35.0 ± 1.3 (35.0; 32.0 – 38.0)

34.3 ± 1.2 (35.0; 32.0 – 37.0)* 2)

  1. Values are given in mean ± standard deviation (median; range). Numbers of subjects, n.
  2. Statistical differences (non-parametric Mann–Whitney-U test):
  3. *** p < 0.001: higher than NSM value.
  4. Statistical difference (parametric Student’s T test):
  5. ***1) p < 0.001: lower than NSM values.
  6. * 2) p < 0.05: lower than NSM value.