Table 3.
Baseline characteristics of 542 mothers and infants pairs according to treatment arm
| All | Intervention | Control | |
|---|---|---|---|
| Sample size |
542 |
271 |
271 |
|
Children |
|
|
|
| Age of the new born at baseline (months) |
3.9 (1.5) |
3.9 (1.5) |
3.8 (1.5) |
| Sex, % (CI95%) |
|
|
|
| Boy |
52.8 (48.5; 57.2) |
52.3 (47.3; 57.3) |
53.4 (46.3; 60.5) |
| Girl |
47.2 (42.8; 51.5) |
47.7 (42.7; 52.7) |
46.6 (39.5; 53.7) |
| Currently breastfeeding the baby, % (CI95%) |
|
|
|
| Yesa |
71.7 (66.7; 76.7) |
67.7 (60.2; 75.3) |
75.7 (69.7; 81.7) |
| No |
28.3 (23.3; 33.3) |
32.3 (24.7; 39.8) |
24.3 (18.3; 30.3) |
|
Mothers |
|
|
|
| Age of the mother at baseline (years) |
32.3 (4.3) |
32.5 (4.2) |
32.0 (4.4) |
| BMI before pregnancy (kg/m2) |
24.5 (5.3) |
24.7 (5.6) |
24.3 (5.0) |
| Education level, % (CI95%) |
|
|
|
| Low |
21.1 (17.1; 25.2) |
22.0 (16.3; 27.7) |
20.3 (14.6; 26.0) |
| Intermediate |
24.7 (20.7; 28.8) |
26.5 (21.0; 32.1) |
22.9 (17.2; 28.6) |
| High |
54.2 (48.1; 60.2) |
51.5 (43.9; 59.1) |
56.8 (47.6; 66.0) |
| Employment status, % (CI95%) |
|
|
|
| On maternity leave |
66.1 (62.4; 69.8) |
66.8 (61.4; 72.2) |
65.4 (60.4; 70.4) |
| Home duties full time |
16.8 (13.6; 19.9) |
15.6 (10.8; 20.5) |
17.9 (14.0; 21.8) |
| Employed |
9.3 (6.7; 12.0) |
8.8 (5.2; 12.3) |
9.9 (6.0; 13.8) |
| Unemployed |
4.4 (2.5; 6.3) |
4.2 (1.6; 6.8) |
4.6 (1.7; 7.4) |
| Student |
1.1 (0.3; 2.0) |
1.9 (0.3; 3.5) |
0.4 (0; 1.1) |
| Other |
2.3 (0.8; 3.8) |
2.7 (0.1; 5.2) |
1.9 (0.3; 3.5) |
| Country of birth, % (CI95%) |
|
|
|
| Australia |
79.1 (75.0; 83.1) |
78.4 (72.3; 84.5) |
79.7 (74.3; 85.1) |
| Other |
20.9 (16.9; 25.0) |
21.6 (15.5; 27.7) |
20.3 (14.9;25.7) |
| Language spoken at home, % (CI95%) |
|
|
|
| English |
93.8 (91.3; 96.2) |
93.9 (89.9-98.0) |
93.6 (90.8-96.4) |
| Other | 6.2 (3.8; 8.7) | 6.1 (2.0; 10.1) | 6.4 (3.6; 9.2) |
Figures are means (SD) unless stated otherwise.
aThis category includes both partial and exclusive breastfeeding.