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Table 3 Comparison of demographic and clinical variables between vitamin D deficient and ‘not deficient’ groups

From: Vitamin D deficiency and length of pediatric intensive care unit stay: a prospective observational study

Outcome variables Vitamin D deficiency
N = 75
‘No deficiency’
N = 26
P value
Age (yrs) 4 (0.5–9) 1 (0.4–8) 0.12
Female gender 39 (53) 10 (37) 0.16
Weight for age
 Moderate under-nutrition 31 (80) 8 (31) 0.33*
 Severe under-nutrition 21 (70) 9 (34) 0.66*
PIM2-probability of death (%) (median, IQR) 12.5 (8.6–23.5) 11.5 (6.8–30) 0.45
PELOD score (median, IQR) 21 (11–22) 21 (10–21) 0.09
Diagnosis (infections) 47 (64) 16 (59) 0.69
Hypocalcemia    
 Total 27 (36) 6 (37.5) 0.9
 Ionized 58 (77) 15 (94) 0.14
Serum calcium (median, IQR)
 Total (mg/dL) 8.5 (7.4–8.9) 8.7 (7.1–9.2) 0.30
 Ionized (mmol/L) 0.65 (0.4–0.8) 0.70 (0.63–0.9) 0.21
Parathyroid levels (pg/mL) 16 (1.4) 16.6 (5) 0.36
Need for fluid boluses in first 6 h 44 (59) 12 (38) 0.14
Need for mechanical ventilation (n %) 43 (57) 10 (39) 0.10
Duration of ventilation (days)
 Median (IQR) 6.5 (3.5–14) 7 (2–13) 0.55
Need for inotropes (n %) 40 (53) 8 (31) 0.06
 Inotrope score 1320 (960–7040) 2440 (1440–3120) 0.23
 Duration of inotrope therapy, days (median, IQR) 2 (2–4) 1.5 (1–2) 0.15
Duration of PICU stay 7 (2–12) 3 (2–5) 0.006
Mortality (n %) 23 (31) 8 (31) 1.0
  1. Data presented as number (proportion), mean (SD), or median (IQR)
  2. PELOD pediatric logistic organ dysfunction, PIM pediatric index of mortality, CI confidence interval, IQR interquartile range, PICU pediatric intensive care unit
  3. * Compared to no under-nutrition