Table 1.
Characteristics of the study sample according to any breastfeeding duration (n = 1,603 children)
| N | Any breastfeeding duration | ||
|---|---|---|---|
| <1 month | 1 to 4 months | ≥4 months | |
| 523 | 510 | 570 | |
| Recruitment in Poitiers | 63.7% (333) | 42.2% (215) | 38.8% (221) |
| Familial history of allergy | 49.7% (260) | 52.7% (269) | 54.7% (312) |
| Primiparous mother | 44.2% (231) | 50.2% (256) | 43.9% (250) |
| Maternal smoking during pregnancy | 31.5% (165) | 25.1% (128) | 15.1% (86) |
| Maternal master's degree | 22.0% (115) | 33.5% (171) | 47.9% (273) |
| Maternal age at birth (years) | 29.4 (± 4.9) | 29.3 (± 4.7) | 30.5 (± 4.6) |
| Family monthly income | |||
| ≤€1,500 | 17.0% (89) | 11.2% (57) | 12.3% (70) |
| €1,501–2,300 | 37.3% (195) | 29.8% (152) | 22.8% (130) |
| €2,301–3,000 | 25.8% (135) | 28.4% (145) | 28.4% (162) |
| €3,001–3,800 | 13.0% (68) | 17.8% (91) | 19.6% (112) |
| €3,801 | 6.9% (36) | 12.7% (65) | 16.8% (96) |
| Boy | 53.2% (278) | 54.5% (278) | 48.9% (279) |
| Preterm birth | 5.2% (27) | 6.9% (35) | 4.0% (23) |
| C‐section delivery | 16.6% (87) | 16.5% (84) | 14.7% (84) |
| Age at first attendance to collective care arrangement | |||
| Before 4 months | 16.4% (86) | 21.4% (109) | 15.1% (86) |
| Between 4 and 8 months | 6.9% (36) | 11.6% (59) | 17.5% (100) |
| Between 8 and 12 years | 2.1% (11) | 4.1% (21) | 5.3% (30) |
| Never | 74.6% (390) | 62.9% (321) | 62.1% (354) |
|
Age at solid food introduction % (n) or mean (±SD) |
3.9 (±1.7) | 4.2 (±1.6) | 5.0 (±1.4) |
Abbreviation: SD, standard deviation.