Table 2

Bivariate and multivariate COX proportional hazard model to determine factors associated with incidence of secondary erythrocytosis among patients who attended Merhano national referral MDR-TB Hospital, Eritrea from June 2011 to January 2021

VariablesHR (95% CI)P valueAdjusted HR (95% CI)P value
Sex
 Male13.84 (3.30 to 58.03)<0.0017.13 (1.66 to 30.53)0.008
 FemaleRefRef
Educational Status
 Primary3.54 (0.65 to 19.34)0.144
 Middle5.86 (1.33 to 25.80)0.019
 Secondary4.31 (0.91 to 20.29)0.064
 Higher education8.71 (1.46 to 52.19)0.018
 No formal educationRef
Baseline body weight1.09 (1.05 to 1.12)<0.0011.07 (1.03 to 1.10)<0.001
Altitude1.00 (0.99 to 1.01)0.079
  • Ref, reference.