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Table 1 Patient characteristics

From: Vitamin D deficiency in critically ill patients with traumatic injuries

Variable Normal Insufficient Deficient Severely deficient P
25-OH vitamin D concentration range, ng/mL 30–80 20–29.9 13.1–19.9 ≤13  
N 6 31 75 46  
Male/female, n/n 5/1 27/4 61/14 37/9 0.885
Race      
 Caucasian, n (%) 5 (83 %) 22 (71 %) 34 (45 %) 13 (28 %) 0.004
 African-American, n (%) 1 (17 %) 5 (16 %) 32 (43 %) 27 (59 %)  
 Hispanic/other, n (%) 0 (0 %) 4 (13 %) 9 (12 %) 6 (13 %)  
Etiology for admission      
 MVA, n (%) 1 (17 %) 21 (68 %) 48 (64 %) 18 (39 %) 0.001
 GSW/KSW, n (%) 0 (0 %) 1 (3 %) 14 (19 %) 19 (41 %)  
 Fall/Assault, n (%) 5 (83 %) 6 (19 %) 9 (12 %) 6 (13 %)  
 Other, n (%) 0 (0 %) 3 (10 %) 4 (5 %) 3 (7 %)  
Age, years 60 ± 30 46 ± 22 45 ± 18 43 ± 17 0.243
Weight, kg 70 ± 20 85 ± 17 88 ± 23 87 ± 19 0.206
BMI, kg/m2 22 ± 5 27 ± 4 28 ± 7 29 ± 5 0.033
Injury severity score 25 ± 6 30 ± 14 27 ± 14 29 ± 13 0.399
C-reactive protein, mg/dL 20.4 ± 12.0 18.5 ± 12.0 22.1 ± 12.5 23.7 ± 11.9 0.380
Prealbumin, mg/dL 8.9 ± 5.6 9.9 ± 8.2 8.7 ± 4.1 8.5 ± 3.7 0.989
Alcohol abuse, n (%) 1 (17 %) 10 (32 %) 17 (23 %) 12 (26 %) 0.720
Admitted Nov–Mar, n (%) 3 (50 %) 10 (32 %) 29 (39 %) 24 (52 %) 0.300
Serum ionized calcium, mmol/L 1.19 ± 0.06 1.17 ± 0.06 1.18 ± 0.09 1.16 ± 0.07 0.407
Serum phosphorus, mg/dL 2.9 ± 0.3 3.8 ± 0.8 3.6 ± 1.0 3.6 ± 1.0 0.055
25-OH vitamin D, ng/mL 39.2 ± 7.3 23.2 ± 3.0 16.0 ± 2.2 12.8 ± 0.5 0.001
Hospital day of vitamin D determination, days 6.2 ± 2.9 9.8 ± 5.6 7.4 ± 5.3 7.1 ± 4.5 0.077
  1. BMI body mass index, GSW gunshot wound, KSW knife stab wound, Mar March, MVA motor vehicle accident, N number of patients, Nov November, OH hydroxy
  2. *Significantly different (P ≤ 0.05) from the other groups