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Table 1 Baseline characteristics of the patient cohort

From: Children under 15 kg with food allergy may be at risk of having epinephrine auto-injectors administered into bone

Characteristic Total Patients with STBDmax≥12.7 mm Patients with STBDmax<12.7 mm P value
  (n = 100) (n = 71) (n = 29)  
Age (months), median (IQR) 17 (45) 18 (45) 16 (31) 0.19
Males, n (%) 55 (55) 39 (55) 16 (55) 0.98
White race, n (%) 78 (78) 57 (80) 21 (72) 0.38
Weight (kg), mean (SD) 11.5 (2.2) 12.1 (1.9) 10.2 (2.3) 0.0002
Height (m), mean (SD) 0.84 (0.1) 0.85 (0.1) 0.79 (0.1) 0.02
BMI (kg/m2), mean (SD) 16.4 (1.9) 16.5 (1.9) 16.1 (1.3) 0.36
STMDmax (mm), mean (SD) 6.4 (1.4) 6.7 (1.4) 5.5 (0.9) 0.0003
STMDmin (mm), mean (SD) 7.8 (1.8) 8.1 (1.8) 7.1 (1.6) 0.02
STBDmin(mm), mean (SD) 25.1 (4.3) 26.2 (3.8) 22.3 (4.0) 0.0001
  1. IQR: interquartile range; SD: standard deviation; BMI: body mass index; STMDmin: skin-to-muscle depth with minimal pressure; STMDmax: skin-to-muscle depth with maximal pressure; STBDmin: skin-to-bone depth with minimal pressure; STBDmax: skin-to-bone depth with maximal pressure.