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Table 3 Cox regression analyses of factors associated with survival in newly diagnosed people living with HIV/AIDS in Iran (1987–2016)

From: Identifying risk factors for late HIV diagnosis and survival analysis of people living with HIV/AIDS in Iran (1987–2016)

Variable Unadjusted Hazard Rate 95% CI p-value Adjusted Hazard Rate 95% CI p-value
Baseline CD4    < 0.001    < 0.001
 > 350 Reference    Reference   
 < 350 2.25 1.89–2.67   2.21 1.84–2.64  
Age (year)    < 0.001    < 0.001
 < 30 Reference    Reference   
 30–40 1.34 1.10–1.62   1.01 0.83–1.23  
 40–50 1.95 1.57–2.43   1.36 1.08–1.72  
 > 50 2.29 1.73–3.04   1.81 1.33–2.88  
Sex    < 0.001    < 0.001
 Female Reference    Reference   
 Male 3.20 2.53–4.04   1.76 1.28–2.42  
Marital Status    < 0.001    0.002
 Single Reference    Reference   
 Married 0.65 0.55–0.78   0.86 0.71–1.04  
 Divorce 1.23 0.99–1.53   1.08 0.86–1.35  
 Widow 0.87 0.63–1.22   1.68 1.14–2.47  
 Unknown 1.30 0.74–2.26   1.45 0.82–2.55  
Education    < 0.001    0.036
 Academic Reference    Reference   
 Illiterate 2.27 1.38–3.45   1.47 0.88–2.45  
 Primary School 2.09 1.34–3.29   1.49 0.93–2.38  
 Secondary School 1.93 1.23–3.02   1.30 0.82–2.07  
 High School 1.41 0.88–2.24   1.09 0.67–1.76  
 Unknown 1.58 0.98–2.54   1.08 0.66–1.76  
Transmission Way    < 0.001    < 0.001
 Mother to child Reference    Reference   
 Injecting drug users 3.75 1.77–7.90   1.87 0.86–4.08  
 Unprotected sexual 1.13 0.53–2.43   1.01 0.45–2.24  
 Blood transfusion 1.65 0.75–3.66   1.08 0.46–2.40  
 Unknown 17.25 11.01–32.45   18.24 7.06–37.09  
Year of HIV Diagnosis    < 0.001    < 0.001
 After 2011 Reference    Reference   
 2006–2011 3.08 2.51–3.78   2.45 1.97–3.04  
 Before 2006 1.42 1.17–1.72   1.22 0.99–1.49  
TB co-infection    < 0.001    < 0.001
 No Reference    Reference   
 Yes 2.82 2.28–3.49   1.77 1.42–2.21  
Job    0.269    
 Employed Reference    Reference   
 Unemployed 1.13 0.93–1.38  
 Unknown 0.99 0.82–1.21