Table 1 Participant characteristics of a longitudinal study measuring the concentration of pesticides in human milk collected from women (n = 16) at 2, 5, 9 and 12 months postpartum in Western Australia.

From: Longitudinal study of pesticide residue levels in human milk from Western Australia during 12 months of lactation: Exposure assessment for infants

 

Mean ± SD (Range)

Mother (n = 16)

 Age

33.9 ± 5.1 (24–43)

 Parity

2.3 ± 1.1 (0–4)

 Infant gestational age (weeks)

39.4 ± 1.4 (38–43)

 Lactation stage (Months)

2

5

9

12

 Maternal body mass index (BMI) (kg.m−2)

24.9 ± 4.6 (20.4–35.5)

24.3 ± 5.3 (19.0–35.2)

24.5 ± 5.9 (17.9–37.2)

23.7 ± 6.5 (18.2–37.2)

 Percentage fat mass (BIS#)

34.4 ± 5.3 (25.7–44.7)

32.8 ± 6.2 (25.1–47.2)

32.6 ± 6.9 (20.0–44.3)

30.2 ± 7.6 (19.4–44.5)

Infant (Male/Female = 9/7)

 Age (Months)

2.0 ± 0.1 (1.9–2.2)

5.1 ± 0.2 (1.8–5.4)

9.2 ± 0.3 (8.8–9.8)

12.2 ± 0.3 (11.6–12.7)

 Infant weight (kg)*

5.6 ± 0.9 (4.4–7.4)

7.3 ± 0.8 (6.2–8.7)

8.5 ± 0.9 (6.7–10.1)

9.3 ± 0.7 (8.3–10.6)

 Body length (cm)*

57.9 ± 1.8 (54.5–60.0)

64.5 ± 2.4 (60.5–69.5)

70.0 ± 2.3 (66.0–74.0)

73.6 ± 2.4 (69.0–76.3)

 Head circumference (cm)*

39.6 ± 1.5 (37.0–42.0)

42.8 ± 1.9 (40.0–45.0)

45.4 ± 1.8 (43.0–48.5)

46.3 ± 1.5 (44.3–49.5)

 Percentage fat mass (ultrasound skinfolds)

25.6 ± 4.7 (20.9–37.9)

26.1 ± 3.5 (19.7–33.2)

25.7 ± 4.7 (15.0–34.7)

24.8 ± 4.2 (18.2–30.9)

 Percentage fat mass (BIS#)

22.1 ± 2.0 (19.2–24.1)

27.6 ± 2.8 (21.7–30.9)

25.1 ± 5.3 (16.3–33.8)

25.2 ± 3.8 (19.6–30.6)

  1. #BIS: bioimpedance spectroscopy.
  2. *Significant difference (P < 0.05) was observed between months 2–5, 2–9, 2–12, 5–9, 5–12 and 9–12.
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