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Table 5 Relative risks (RR) for Multiple Organ Dysfunction Syndrome (MODS) and mortality among patients with scrub typhus in a hospital of Meghalaya, India, Sept 2011–Aug 2012 (n = 90)

From: Clinical and paraclinical profile, and predictors of outcome in 90 cases of scrub typhus, Meghalaya, India

Study variable MODS (n = 13) Mortality (n = 5)
  RR 95 % CI p RR 95 % CI p
Gender (female vs. male) 1.3 0.46–3.5 0.637 12 0.68–210.8 0.637
Presence of eschar 2.4 0.79–7.28 0.122 2.0 0.25–16.17 0.515
Fever (<7 days vs. >7 days) 2.4 0.34–17.1 0.38 2.32 0.14–39.8 0.562
Occupation (farmer / labourer vs. others) 0.45 0.13–1.52 0.199 1.0 0.17–5.69 1.00
Age (≥60 years vs. <60 years) 1.63 0.43–6.24 0.471 2.25 0.2–18.02 0.44
Serum Bilirubin >3 mg/dl 16.16 5.97–43.7 <0.001* 4.78 0.89–25.54 0.066
Platelet count <100,000/mm3 9.0 3.12–25.9 <0.001* 6.0 1.082–33.2 0.04*
Serum creatinine >1.5 mg/dl 29.9 7.4–120.4 <0.001* 21.7 2.6–180.2 0.004*
AST, ALT or both >500 IU/L 7.7 3.3–17.9 <0.001* 6.0 1.15–31.2 0.03*
  1. Abbreviations: MODS Multiple Organ Dysfunction Syndrome, RR relative risk, CI confidence interval, AST Aspartate aminotransferase, ALT Alanine aminotransferase; *statistically significant (P < 0.05)