TABLE 1.

Details of Mother and Infant Characteristics: mean (range)

GroupBreastfeeding StatusNumber of SubjectsAge of Subjects (y)ParityNumber of Children Previously BreastfedStage of Lactation (Days)Number of Ultrasound Scans
First BreastSecond Breast
BB1–6 mos exclusively breastfeeding1036.4 (26–37)1.9 (1–3)0–2 (0.8)96 (31–186)1814
BB1–6 mos partly breastfeeding530.8 (25–37)1.4 (1–2)0–1 (0.2)142 (86–178)109
BB7–22 mos partly breastfeeding631.7 (24–39)2.2 (2–3)1.2 (1–2)333 (199–634)118
EB1–6 mos exclusively breastfeeding2430.2 (22–38)1.79 (1–4)0.79 (0–3)124 (42–182)62NA
  • NA indicates not applicable.