Number of women who do not initiate breastfeeding within 1 h of birth

< 4 times

1 trial

35/108 (32.4%)

58/86 (67.4%)

RR 0.48 (0.35 to 0.65)

351 fewer per 1000 (from 236 fewer to 438 fewer)

Very low

≥ 4 times

6 trials

1003/1805 (55.6%)

1130/1732 (65.2%)

RR 0.79 (0.57 to 1.08)

137 fewer per 1000 (from 52 more to 281 fewer)

Low

Number of women who stop any breastfeeding before 4–6 weeks postpartum

< 4 times

14 trials (15 comparisons)

733/2129 (34.4%)

725/2050 (35.4%)

RR 0.95 (0.84 to 1.07)

18 fewer per 1000 (from 25 more to 57 fewer)

Low

≥ 4 times

15 trials

463/1865 (24.8%)

533/1661 (32.1%)

RR 0.77 (0.66 to 0.90)

74 fewer per 1000 (from 32 fewer to 109 fewer)

Low

Number of women who stop any breastfeeding before 6 months postpartum

< 4 times

13 trials (14 comparisons)

1599/2675 (59.8%)

1029/1720 (59.8%)

RR 0.96 (0.92 to 1.01)

24 fewer per 1000 (from 6 more to 48 fewer)

Moderate

≥ 4 times

16 trials

882/1785 (49.4%)

1002/1790 (56.0%)

RR 0.85 (0.75 to 0.96)

84 fewer per 1000 (from 22 fewer to 140 fewer)

Low

Number of women who stop exclusive breastfeeding before 4–6 weeks postpartum

< 4 times

15 trials (16 comparisons)

1178/1971 (59.8%)

1036/1629 (63.6%)

RR 0.92 (0.88 to 0.97)

51 fewer per 1000 (from 19 fewer to 76 fewer)

Moderate

≥ 4 times

19 trials (20 comparisons)

1136/2366 (48.0%)

1388/2140 (64.9%)

RR 0.69 (0.58 to 0.82)

201 fewer per 1000 (from 117 fewer to 272 fewer)

Low

Number of women who stop exclusive breastfeeding before 6 months postpartum

< 4 times

12 trials (13 comparisons)

1444/1682 (85.9%)

1326/1471 (90.1%)

RR 0.96 (0.94 to 0.98)

36 fewer per 1000 (from 18 fewer to 54 fewer)

Moderate

≥ 4 times

22 trials (23 comparisons)

2369/3709 (63.9%)

3077/3683 (83.5%)

RR 0.76 (0.66 to 0.88)

201 fewer per 1000 (from 100 fewer to 284 fewer)

Low

Number of infants fed with bottles during the first 6 months postpartum

< 4 times

4 trials

292/554 (52.7%)

324/546 (59.3%)

RR 0.91 (0.82 to 1.01)

53 fewer per 1000 (from 6 more to 107 fewer)

Moderate

≥ 4 times

1 trial

111/175 (63.4%)

144/175 (82.3%)

RR 0.77 (0.68 to 0.88)

189 fewer per 1000 (from 99 fewer to 263 fewer)

High
