Table 1 Patient characteristics

Gender (male/female)

11/20

8/12

Gestational age at birth (weeks)

39.4 (38.4–40.3)

39.0 (38.3–39.7)

5 min APGAR score

9 (7–10)

9 (7–10)

Age at admission (days)

25 (5.5–48.5)

24 (3.8–36.8)

Duration of hospital stay (days)

17 (13.5–24.0)

17 (13.5–24.0)

Weight (g) _admission

3520 (2988–3993)

3352 (2925–3848)

SDS _admission

−1.34 (− 1.76 – − 0.57)

−1.29 (− 1.73–0.20)

Weight (g) _discharge

4130 (3748–4509)

3960 (3658–4361)

SDS _discharge

−1.14 (− 1.79 – − 0.54)

−1.10 (− 1.79 – − 0.35)

Weight (g) _{3 month follow-up}

6093 (5120–6394)

6133 (5350–6391)

SDS _{3 month follow-up}

−1.50 (− 1.89 – − 0.54)

−1.61 (− 1.93 – − 0.65)

SDS _{admission - birth weight}

−0.90 (− 1.37 – − 0.39)

−0.87 (− 1.32 – − 0.31)

SDS _{weight discharge - admission}

− 0.07 (− 0.17–0.30)

− 0.09 (− 0.22–0.39)

SDS _{weight 3 month - admission}

− 0.14 (− 0.59–0.59)

− 0.28 (− 0.61–0.38)

 at admission

26 (84%)

18 (90%)

 at discharge

7 (22.6%)

4 (20%)