Table 3 Comparison of Group A and Group B (patients’ characteristics)

Age (years)

19 (16–30)

11–46

30 (15–37)

10–54

0.322

Age of illness onset (years)

16 (15–18)

11–35

17 (13–21)

8–38

0.957

Duration of illness (years)

1.6 (0.8–12.5)

0.2–28.0

9.0 (1.0–16.0)

0.5–40.0

0.132

Duration of hospitalization (days)

46 (29–76)

15–138

48 (34–75)

23–154

0.568

BMI on admission (kg/m²)

12.2 (11.1–13.3)

9.2–14.3

12.3 (10.8–13.2)

8.1–14.9

0.831

BMI on discharge (kg/m²)

14.6 (13.6–15.0)

11.3–18.5

14.6 (13.9–16.1)

11.4–17.4

0.548

Ratio of BMI increase^c

1.2 (1.1–1.3)

1.0–1.5

1.2 (1.1–1.3)

1.1–1.6

0.389

Speed of BMI increase ([kg/m²]/days)^d

0.04 (0.03–0.05)

0.02–0.13

0.05 (0.03–0.07)

0.01–0.13

0.159

Minimum BMI during hospitalization (kg/m²)

12.0 (10.9–12.8)

9.2–14.0

12.2 (10.8–13.2)

8.1–14.4

0.749

Time to nadir BMI (days)

0 (0–1.8)

0–10.0

3.0 (0–6.0)

0–41.0

0.03

Initial prescribed calories (kcal/kg)

37.0 (29.7–47.2)

6.6–77.2

33.2 (27.4–48.2)

16.7–115.3

0.67

Maximum prescribed calories (kcal/kg)

71.8 (56.5–82.8)

47.1–113.1

67.2 (58.5–82.7)

43.0–116.5

0.927

Speed of caloric increase (kcal/days)^e

36.6 (29.4–59.6)

0–98.3

33.3 (14.6–63.8)

0–595.0

0.721

p value^b

Early onset (<15 years old)

0.033

Peak or late onset (≥15 years old)