| 
      
        | Birth Weight (g) | Infant deaths | Odds ratio [95%CI] | Odds ratio [95%CI] | Odds ratio [95%CI] | Odds ratio [95%CI] |  
        |  | Death | IMR |  
        | <500 | 30 | 600.0 | 334.9 [164.7-681.1]* | 76.2 [40.0-145.2]* | 28.6    [12.5-65.6]* | 11.8    [5.7-24.5]* |  
        | 500–599 | 35 | 479.5 | 205.7 [109.7-385.4]* | 46.8 [26.9-81.4]* | 17.6    [8.2-37.6]* | 7.2 [3.8-13.9]* |  
        | 600-699 | 25 | 290.7 | 91.5 [48.6-172.3]* | 20.8 [11.9-36.4]* | 7.8 [3.6-16.8]* | 3.2 [1.7-6.2]* |  
        | 700-799 | 18 | 148.8 | 39.0 [20.2-75.4]* | 8.9 [4.9, 16.0]* | 3.3 [1.5-7.3]* | 1.4 [0.7-2.7] |  
        | 800-899 | 20 | 113.0 | 28.4 [15.1-53.6]* | 6.5 [3.7-11.3]* | 2.4 [1.15.2]* | 1.00 Reference |  
        | 900-999 | 11 | 49.8 | 11.7 [5.6-24.6]* | 2.7 [1.4-5.3]* | 1.00 Reference |  |  
        | 1000-1499 | 41 | 19.3 | 4.4 [2.6-7.5]* | 1.00 Reference |  |  |  
        | ≥1500 | 21 | 4.5 | 1.00 Reference |  |  |  |  
        | <500 |  |  | 8.6 [4.0-18.3]* | 3.7 [1.8-7.6]* | 1.6 [0.8-3.4] |  |  
        | 500-599 |  |  | 5.2 [2.7-10.4]* | 2.3 [1.2-4.3]* | 1.00 Reference |  |  
        | 600-699 |  |  | 2.4 [1.2-4.7]* | 1.00 Reference |  |  |  
        | 700-799 |  |  | 1.00 Reference |  |  |  |  |