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Table 1 Demographic characteristics and comorbidities in patients with and without burn injury

From: Increased risk of chronic fatigue syndrome following burn injuries

Variable Burn p-value
No Yes
N = 68,812 N = 17,204
Sex n(%) n(%) 0.99
Female 35,896(52.2) 8974(52.2)  
Male 32,916(47.8) 8230(47.8)  
Age, mean(SD) 45.4(17.3) 45.6(17.2) 0.14*
Age group    0.99
 ≤ 49 21,576(31.4) 5394(31.4)  
50-64 20,908(30.4) 5227(30.4)  
65+ 26,328(38.3) 6583(38.3)  
Comorbidity    
Diabetes 4299(6.25) 1701(9.89) <0.001
Obesity 776(1.13) 266(1.55) <0.001
Renal disease 3394(4.93) 1201(6.98) <0.001
Rheumatoid arthritis 112(0.16) 38(0.22) 0.10
HIV 32(0.05) 2(0.01) 0.02
Malignancy 1374(2.00) 319(1.85) 0.23
Depression 2556(3.71) 1135(6.60) <0.001
Anxiety 8552(12.4) 3137(18.2) <0.001
Sleep disorder 10,049(14.6) 3731(21.7) <0.001
Irritable bowel syndrome 2611(3.79) 874(5.08) <0.001
  1. P-values from Chi square test, except where noted differently
  2. *Two sample t-test