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Table 2 Relative risk* for univariate and multivariate models for the 5 years survival experience by migration status

From: Coming home to die? the association between migration and mortality in rural South Africa

  Univariate model   Multivariate Model  
Variable n HR [95%CI] Adjusted HR [95% CI] P-Value
Sex     
   Females 23,372 1 1  
   Male 18,145 1.17 [1.09–1.26] 1.36 [1.27–1.46] <0.001
Migration status     
   External in-migrants 7,867 1.60 [1.45–1.75] 1.28 [1.16–1.41] <0.001
   Internal migrants 4,403 1.01 [0.89–1.16] 0.89 [0.78–1.02] 0.102
   Out-migrants 11,476 0.34 [0.30–0.38] 0.30 [0.27–0.34] <0.001
   residents 17,771 1 1  
Education     
   Grade 1 to 4 6,790 1 1  
   Grade 5 to 12 26,733 0.44 [0.40–0.48] 0.74 [0.67–0.81] <0.001
   Tertiary 275 1.38 [1.00–1.93] 1.80 [1.29–2.53] 0.001
   Don't know 2,295 0.38 [0.30–0.47] 0.45 [0.36–0.55] <0.001
   Missing 5,424 3.32 [3.01–3.67] 5.09 [4.54–5.72] <0.001
Age category:     
   18 to 25 17,484 1 1  
   26 to 40 14,380 4.60 [4.13–5.11] 3.55 [3.18–3.95] <0.001
   41 to 60 9,653 4.24 [3.80–4.74] 3.28 [2.91–3.70] <0.001
Economic status     
   >= 7 assets 18,735 1 1  
   < 7 assets 19,744 1.25 [1.16–1.35] 1.32 [1.22–1.43] <0.001
   Missing 3,038 3.33 [2.94–3.77] 1.19 [1.04–1.37] 0.010
  1. * Hazard ratio (HR) with 95% confidence intervals (95%CI).
  2. Variables controlled for were sex, migration status, educational level, age and socioeconomic status.