Table 2 Percentage of newborns breastfed at birth, 3, 6 and 9 months: according to different maternal or newborn factors
From: Factors associated with duration of breastfeeding in Spain: a cohort study
Factor | At hospital discharge | 3 months | 6 months | 9 months |
|---|---|---|---|---|
All participants | 79.2 (76.4, 81.7) | 56.6 (53.2, 59.8) | 42.9 (39.6, 46.1) | 32.2 (29.2, 35.3) |
Maternal educational level | ||||
Primary studies | 69.0 (61.8, 75.1) | 43.9 (36.7, 50.8) | 32.6 (26.0, 39.4) | 26.2 (20.1, 32.7) |
Secondary studies | 81.1 (72.3, 87.4) | 50.9 (41.1, 60.0) | 37.7 (28.6, 46.9) | 34.9 (26.0, 44.0) |
Foundation degree | 76.0 (70.2, 80.8) | 48.8 (42.5, 54.8) | 34.3 (28.5, 40.1) | 22.1 (17.2, 27.3) |
University studies | 86.9 (82.7, 90.2) | 71.3 (66.1, 76.0) | 57.3 (51.7, 62.5) | 43.0 (37.5, 48.3) |
Maternal occupation | ||||
Working | 79.2 (75.7, 82.2) | 59.2 (55.2, 63.0) | 43.4 (39.5, 47.3) | 31.5 (27.8, 35.2) |
Unemployed | 59.2 (55.2, 63.0) | 53.6 (45.4, 61.2) | 43.7 (35.7, 51.4) | 35.8 (28.2, 43.4) |
Inactive | 78.1 (68.9, 84.9) | 44.8 (35.1, 54.0) | 37.1 (28.0, 46.3) | 31.4 (22.8, 40.4) |
Student | 100 | 66.7 (28.2, 87.8) | 55.6 (20.4, 80.5) | 33.3 (7.8, 62.3) |
Smoking in pregnancy | ||||
No | 81.3 (78.4, 83.9) | 60.1 (56.6, 63.5) | 45.9 (42.3, 49.4) | 35.0 (31.6, 38.4) |
Yes | 65.2 (55.8, 73.1) | 33.0 (24.6, 41.7) | 22.6 (15.5, 30.6) | 13.9 (8.3, 20.9) |
Duration of pregnancy | ||||
≥ 37 weeks | 80.1 (77.2, 82.7) | 57.5 (54.0, 60.8) | 43.6 (40.2, 47.0) | 33.0 (29.8, 36.2) |
34–36 weeks | 65.8 (48.5, 78.5) | 50.0 (33.4, 64.5) | 34.2 (19.8, 49.1) | 26.3 (13.7, 40.8) |
< 34 weeks | 68.4 (42.8, 84.4) | 31.6 (12.9, 52.3) | 26.3 (9.6, 46.8) | 10.5 (1.8, 28.4) |
Type of delivery | ||||
Vaginal (non-instumental) | 80.6 (77.1, 83.6) | 57.8 (53.7, 61.6) | 43.8 (39.7, 47.8) | 33.1 (29.3, 37.0) |
Instrumental | 80.0 (69.0, 87.4) | 58.7 (46.7, 68.8) | 40.0 (28.9, 50.8) | 26.7 (17.3, 37.0) |
Cesarean rate | 75.1 (68.7, 80.4) | 52.6 (45.7, 59.0) | 41.3 (34.7, 47.8) | 31.9 (25.8, 38.2) |
Newborn gender | ||||
Male | 79.0 (74.9, 82.6) | 58.8 (54.0, 63.2) | 44.9 (40.2, 49.5) | 34.4 (30.0, 38.9) |
Female | 79.4 (75.3, 82.9) | 54.4 (49.6, 58.9) | 40.8 (36.2, 45.4) | 30.1 (25.8, 34.4) |
Twin pregnancy | ||||
No | 79.9 (77.0, 82.5) | 57.3 (53.9, 60.6) | 43.7 (40.3, 47.0) | 33.0 (29.9, 36.2) |
Yes | 64.1 (47.0, 76.9) | 41.0 (25.7, 55.8) | 25.6 (13.3, 39.9) | 15.4 (6.2, 28.3) |
Newborn weight | ||||
< 2500 | 67.5 (56.1, 76.6) | 36.3 (25.9, 46.7) | 31.3 (21.5, 41.5) | 18.8 (11.1, 28.0) |
2500–4000 g | 80.4 (77.3, 83.1) | 58.5 (54.9, 62.0) | 43.7 (40.1, 47.3) | 33.0 (29.6, 36.4) |
> 4000 g | 80.6 (68.9, 88.2) | 59, 7 (47.0, 70.3) | 47.8 (35.5, 59.1) | 40.3 (28.6, 51.7) |