Table 2 Level of hair cortisol concentration in 51 patients with appendicitis.

From: Associations of hair cortisol concentrations with paediatric appendicitis

  Low HCC (n = 25) High HCC (n = 26) p value
Age (years) 10 (4–13) 5.5 (1–13) 0.03*
Sex (Male) 12 (48%) 14 (54%) 0.68**
Viral infections < 6 m 1 (0–4) 2 (0–5) 0.42*
Bacterial infections < 6 m 0 (0–1) 0 (0–2) 1.0*
Surgery < 6 m 0 (0%) 0 (0%)
Serious illness < 6 m 3 (12%) 2 (8%) 0.61**
Serious life events < 6 m 2 (8%) 2 (8%) 0.97**
Season    0.17**
Winter 5 (20%) 3 (12%) 0.41**
Spring 3 (12%) 6 (23%) 0.30**
Summer 6 (24%) 6 (23%) 0.94**
Autumn 11 (44%) 11 (42%) 0.90**
Complicated appendicitis 13 (52%) 21 (81%) 0.03**
  1. Values presented as median (min–max) or as absolute number (percentage of patients/controls); HCC: hair cortisol concentration; Low HCC: < 21.03 pg/mg (median), high HCC ≥ 21.03 pg/mg (median; *Mann–Whitney U-test, **Chi-squared test.