Table 4: Efron estimation.

CPHM BCPHM JCPHM
Covariate (Reference) Level HR SE z P>z 95% CI HR SE z P>z 95% CI HR SE z P>z 95% CI
Age (Under 20 years old) 20 to 34 years old 0.160 0.079 -3.680 p < 0.001 [0.060; 0.424] 0.160 0.323 -0.910 0.364 [0.003; 8.374] 0.160 0.087 -3.370 0.001 [0.055; 0.464]
35 years old and above 0.199 0.107 -2.990 0.003 [0.069; 0.573] 0.199 0.406 -0.790 0.429 [0.004; 10.896] 0.199 0.120 -2.680 0.007 [0.061; 0.648]
Residence (Rural) Urban 1.029 0.246 0.120 0.907 [0.643; 1.645] 1.029 0.307 0.090 0.925 [0.573; 1.847] 1.029 0.314 0.090 0.927 [0.565; 1.871]
Antecedents (Not 1st newborn) 1st newborn 0.723 0.212 -1.110 0.268 [0.407; 1.283] 0.723 0.227 -1.030 0.301 [0.391; 1.337] 0.723 0.233 -1.010 0.314 [0.384; 1.359]
Abortion (Not aborted) Aborted once 1.588 0.628 1.170 0.242 [0.732; 3.448] 1.588 0.696 1.060 0.291 [0.673; 3.749] 1.588 0.659 1.110 0.265 [0.704; 3.585]
Aborted more than once 1.147 0.519 0.300 0.762 [0.473; 2.782] 1.147 4.651 0.030 0.973 [0.000; 3.251x 103] 1.147 0.587 0.270 0.789 [0.420; 3.127]
Childbirth (Ventouse) Natural 0.532 0.400 -0.840 0.401 [0.122; 2.319] 0.532 3.646 -0.090 0.927 [0.000; 3.605x 105] 0.532 0.448 -0.750 0.454 [0.102; 2.772]
Surgery 0.695 0.515 -0.490 0.624 [0.163; 2.969] 0.695 4.766 -0.050 0.958 [0.000; 4.743x 105] 0.695 0.579 -0.440 0.663 [0.136; 3.558]
Gender (Female) Male 2.061 0.500 2.980 0.003 [1.282; 3.315] 2.061 0.556 2.680 0.007 [1.215; 3.496] 2.061 0.592 2.520 0.012 [1.173; 3.621]
Number (Singleton) Multiple 0.243 0.113 -3.040 0.002 [0.098; 0.606] 0.243 0.135 -2.540 0.011 [0.082; 0.724] 0.243 0.141 -2.440 0.015 [0.078; 0.759]
APGAR (Below 4/10) 4/10 to 6/10 0.207 0.084 -3.880 p < 0.001 [0.094; 0.460] 0.207 0.116 -2.820 0.005 [0.070; 0.618] 0.207 0.120 -2.710 0.007 [0.066; 0.648]
7/10 and above 0.030 0.012 -8.960 p < 0.001 [0.014; 0.065] 0.030 0.015 -7.070 p < 0.001 [0.011; 0.080] 0.030 0.016 -6.750 p < 0.001 [0.011; 0.083]
Weight (Under 2500 g) 2500 g to 4500 g 0.222 0.088 -3.800 p < 0.001 [0.102; 0.483] 0.222 0.105 -3.180 0.001 [0.088; 0.562] 0.222 0.107 -3.110 0.002 [0.086; 0.574]
Above 4500 g 0.389 0.426 -0.860 0.389 [0.045; 3.338] 0.389 8.081 -0.050 0.964 [0.000; 1.950x 1017] 0.389 17.369 -0.020 0.983 [0.000; 4.530x 1037]
Head (Below 32 cm) 32 cm to 36 cm 0.284 0.110 -3.250 0.001 [0.133; 0.607] 0.284 0.115 -3.100 0.002 [0.129; 0.629] 0.284 0.119 -3.000 0.003 [0.125; 0.647]
Above 36 cm 0.110 0.117 -2.070 0.038 [0.014; 0.886] 0.110 2.350 -0.100 0.918 [0.000; 1.590x 1017] 0.110 3.679 -0.070 0.947 [0.000; 3.080x 1027]
Height (Below 36 cm) 46 cm to 54 cm 0.569 0.238 -1.350 0.177 [0.251; 1.291] 0.569 0.252 -1.270 0.202 [0.239; 1.354] 0.569 0.273 -1.180 0.240 [0.222; 1.457]
Above 54 cm 1.010 1.094 0.010 0.993 [0.121; 8.431] 1.010 21.269 0.000 1.000 [0.000; 18.460x 1017] 1.010 44.776 0.000 1.000 [0.000; 5.730x 1037]
Adjusted CPHM Adjusted BCPHM Adjusted JCPHM
Age (Under 20 years old) 20 to 34 years old 0.201 0.098 -3.280 0.001 [0.077; 0.524] - - - - - 0.201 0.102 -3.170 0.002 [0.075; 0.543]
35 years old and above 0.293 0.152 -2.360 0.018 [0.106; 0.811] - - - - - 0.293 0.160 -2.250 0.025 [0.101; 0.856]
Gender (Female) Male 2.071 0.495 3.050 0.002 [1.297; 3.308] 1.562 0.400 1.740 0.081 [0.946; 2.579] 2.071 0.587 2.570 0.010 [1.188; 3.611]
Number (Singleton) Multiple 0.205 0.092 -3.520 p < 0.001 [0.085; 0.495] - - - - - 0.205 0.118 -2.740 0.006 [0.066; 0.637]
APGAR (Below 4/10) 4/10 to 6/10 0.273 0.103 -3.430 0.001 [0.130; 0.573] 0.545 0.273 -1.210 0.226 [0.204; 1.457] 0.273 0.169 -2.100 0.036 [0.081; 0.919]
7/10 and above 0.038 0.014 -8.980 p < 0.001 [0.019; 0.078] 0.077 0.036 -5.440 p < 0.001 [0.030; 0.193] 0.038 0.023 -5.530 p < 0.001 [0.012; 0.122]
Weight (Under 2500 g) 2500 g to 4500 g 0.179 0.063 -4.890 p < 0.001 [0.090; 0.356] 0.201 0.083 -3.880 0.000 [0.089; 0.452] 0.179 0.071 -4.360 p < 0.001 [0.082; 0.388]
Above 4500 g 0.379 0.396 -0.930 0.353 [0.049; 2.938] 0.477 9.872 -0.040 0.971 [0.000; 2.040x 1017] 0.379 16.849 -0.020 0.983 [0.000; 2.970x 1037]
Head (Below 32 cm) 32 cm to 36 cm 0.205 0.067 -4.860 p < 0.001 [0.108; 0.388] 0.215 0.090 -3.680 p < 0.001 [0.095; 0.487] 0.205 0.081 -4.030 p < 0.001 [0.095; 0.443]
Above 36 cm 0.095 0.100 -2.250 0.025 [0.012; 0.740] 0.105 2.180 -0.110 0.914 [0.000; 5.960x 1016] 0.095 4.226 -0.050 0.958 [0.000; 5.340x 1036]
X2= 316.160, p < 0.001 X2= 297.200, p < 0.001 X2= 29.760, p < 0.001

Back to Article