Table 1

Demographic characteristics and comorbidity in patients with and without scrub typhus

VariableScrub typhusp Value
NoYes
n=20 860n=5215
Sexn (%)n (%)
 Female7324 (35.1)1831 (35.1)0.99
 Male13 536 (64.9)3384 (64.9)
Age, mean (SD)*46.1 (16.9)46.4 (16.8)0.31
Stratify age
 ≤348015 (38.4)2003 (38.4)0.99
 35–496233 (29.9)1559 (29.9)
 50–644708 (22.6)1177 (22.6)
 ≥651904 (9.13)476 (9.13)
Comorbidity
 Hypertension1234 (5.32)686 (13.2)<0.001
 Diabetes708 (3.39)501 (9.61)<0.001
 Hyperlipidaemia304 (1.46)243 (4.66)<0.001
 CVA486 (2.33)165 (3.16)<0.001
 COPD295 (1.41)183 (3.51)<0.001
 CHF145 (0.70)91 (1.74)<0.001
 Asthma163 (0.78)107 (2.05)<0.001
 CAD459 (2.20)182 (3.49)<0.001
  • χ2 Test.

  • *Two sample t tests.

  • CAD, coronary artery disease; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular accident.