Factors positively associated with any breast milk
feeding at 6 months were feeding only directly at the
breast in the first 24–48 h of life; intending to breast
feed for 6 months or longer; and having completed a
university degree or higher (table 5). Reporting breastfeeding
problems in the first 24–48 h postpartum was
negatively associated with any breastfeeding at 6 months.
Variables significant at univariate level but not in the full
model were parity, public/private admission status,
being born in Australia, type of birth, maternal BMI,
and the use of epidural analgesia in labour. Maternal
BMI was dichotomised at 30 as well as at 35, and neither
showed an association in the full model; however, the
study was underpowered to look at women with a BMI of
35 or above. Likewise, the study was underpowered to
look at women aged less than 26 years compared with
women older than this. The effect of birth type was similarly
explored in three categories as currently presented