Table 1 Bivariate associations between study variables and breastfeeding duration of the second child, one-way ANOVA and Pearson’s correlation
Variable | Exclusive breastfeeding duration second child (N = 717) | Any breastfeeding duration second child (N = 691) | ||||||
|---|---|---|---|---|---|---|---|---|
% missing | Mean | SD | P-value | % missing | Mean | SD | P-value | |
Breastfeeding experience (1st child) | ||||||||
Duration of exclusive breastfeeding | ||||||||
Less than 2 months | 5.58 | 11.29 | 11.09 | < 0.001 | ||||
2–4 months | 15.24 | 7.25 | ||||||
4–6 months | 20.55 | 6.89 | ||||||
More than 6 months | 21.64 | 10.19 | ||||||
Duration of any breastfeeding | ||||||||
Less than 4 months | 6.22 | 17.37 | 14.22 | < 0.001 | ||||
4–8 months | 29.58 | 11.79 | ||||||
8–12 months | 37.70 | 11.55 | ||||||
More than 12 months | 48.79 | 13.83 | ||||||
Duration of exclusive breastfeeding (weeks) | ||||||||
Correlation | 5.58 | 0.418 | < 0.001 | |||||
Duration of any breastfeeding (weeks) | ||||||||
Correlation | 6.22 | 0.595 | < 0.001 | |||||
Breastfeeding intentions and self-efficacy (2nd child) | ||||||||
Intended breastfeeding duration (weeks) | ||||||||
Correlation | 4.88 | 0.352 | < 0.001 | 4.63 | 0.511 | < 0.001 | ||
Confidence in ability to breastfeed for 4 months | ||||||||
Certain | 4.74 | 19.68 | 7.84 | < 0.001 | 4.49 | 37.05 | 14.10 | < 0.001 |
Neither nor / Uncertain | 10.05 | 9.78 | 20.56 | 16.57 | ||||
Maternal factors | ||||||||
Age (years) | ||||||||
Correlation | 0.00 | 0.054 | 0.150 | 0.00 | 0.059 | 0.121 | ||
Educational level | ||||||||
Low level | 0.00 | 17.08 | 10.00 | 0.163 | 0.00 | 30.77 | 16.56 | 0.012 |
Mid-level | 17.74 | 9.20 | 33.92 | 15.12 | ||||
High level | 18.80 | 8.47 | 36.00 | 15.89 | ||||
Perinatal factors (2nd child) | ||||||||
Gender | ||||||||
Boy | 0.00 | 17.63 | 9.68 | 0.175 | 0.00 | 33.59 | 16.10 | 0.232 |
Girl | 18.55 | 8.31 | 35.03 | 15.33 | ||||
Gestational age at birth (weeks) | ||||||||
Correlation | 0.00 | 0.100 | 0.007 | 0.00 | 0.067 | 0.080 | ||
Birth weight (kg) | ||||||||
Correlation | 0.14 | 0.010 | 0.790 | 0.14 | 0.028 | 0.462 | ||
Caesarean section | ||||||||
Yes | 0.00 | 16.21 | 9.72 | 0.009 | 0.00 | 31.48 | 17.71 | 0.030 |
No | 18.49 | 8.84 | 34.88 | 15.23 | ||||
Formula supplement, hospital | ||||||||
Yes | 0.00 | 14.05 | 10.56 | < 0.001 | 0.00 | 30.60 | 18.27 | 0.003 |
No | 19.02 | 8.38 | 35.16 | 14.97 | ||||
Breastfeeding support (2nd child) | ||||||||
Received the necessary support for breastfeeding in the hospital | ||||||||
Yes | 1.95 | 18.67 | 8.87 | 0.013 | 2.03 | 35.22 | 15.14 | 0.031 |
Neither nor / No | 16.74 | 9.17 | 32.23 | 17.23 | ||||
Received the necessary support for breastfeeding from the health visitor | ||||||||
Yes | 2.51 | 18.43 | 8.90 | 0.195 | 2.60 | 34.71 | 14.99 | 0.337 |
Neither nor / No | 17.46 | 9.25 | 33.44 | 17.13 | ||||
Received the necessary support for breastfeeding from the father | ||||||||
Yes | 0.42 | 18.26 | 8.93 | 0.197 | 0.43 | 34.50 | 15.48 | 0.463 |
Neither nor / No | 16.39 | 9.90 | 32.67 | 18.57 | ||||
Intervention programme | ||||||||
Control group | 0.00 | 17.55 | 9.82 | 0.146 | 0.00 | 35.48 | 14.99 | 0.033 |
Intervention group | 18.54 | 8.28 | 32.92 | 16.47 | ||||