Group 1 (n  =  16)Group 2 (n  =  18)Group 3 (n  =  24)Group 4 (n  =  50)p Value*
Z-score change B–28 days⩾−1<−1⩾−1<−1
Z-score change B–18 months⩾−1⩾−1<−1<−1
Rehospitalisation1 (0–7)0 (0–11)1 (0–10)0 (0–11)0.11
GP visits5 (1–18)8 (1–18)8 (1–40)4 (0–26)0.25
A&E visits1 (0–3)0 (0–4)0 (0–5)0 (0–8)0.91
  • B, birth. Values are median (range) number of episodes. *Wilcoxon rank sum test.