Table 2.

Clinical characteristics during follow‐up, by weight loss status

Characteristics	EWL during birth hospitalisation (n = 70)	No EWL during birth hospitalisation (n = 1037)	P‐value
Time to onset of mature milk production	3.8 ± 1.0	3.3 ± 1.0	<0.001
Weight loss at recorded nadir (% of birthweight)	11.3 ± 1.5	5.9 ± 2.2	<0.001
State Trait Anxiety Inventory score at 2 weeks, mean ± SD	29.5 ± 8.9	26.6 ± 7.3	0.002
Positive anxiety screen at 2 weeks, n (%)	12 (18)	60 (6)	<0.001
Milk supply concern at 2 weeks, n (%)	29 (41)	187 (18)	<0.001

EWL, excess weight loss; SD, standard deviation.