Covariates β SE(β) Z       HR[95%CI] P=Pr(>|z|)   
Mode of Delivery  (SVD)          
CS -0.2856 0.2172 -1.315 0.7516[0.49101, 1.1504] 0.188535
ANC  (No)          
Yes         -0.6449 0.224 -2.879 0.5247[0.33828, 0.8139] 0.003987**
Gravidity (1)          
2 - 5    0.5514 0.2883 1.913 1.7358[0.98654, 3.0539] 0.055752
6 - 10       0.7284 0.3713 1.962 2.0717[1.00074, 4.2889] 0.049766**
HIV status (Negative)          
Positive      0.5896 0.2822 2.09 1.8033[1.03724, 3.1351] 0.036658**
Weight of Infant      (<1600)          
[1600, 2500] 0.1031 0.2109 0.489 1.1086[0.73320, 1.6763] 0.624978
Multiple Pregnancy    (No)          
Yes 0.1289 0.2004 0.643 1.1376[0.76807, 1.6849] 0.520065
RDS (No)          
Yes 2.0508 0.2554 8.028 7.7742[4.71215, 12.826] 9.99e-16**
PNA (No)          
Yes  0.7537 0.2057 3.664 2.1248[1.41979, 3.1798] 0.000248**
Anemia (No)          
Yes         1.5411 0.4954 3.111 4.6699[1.7687, 12.3297] 0.001863**
GAvsWeight(SGA)          
AGA -0.2702 0.3209 -0.842 0.7632[0.40689, 1.4316] 0.399816
LGA    -0.8544 1.067 -0.801 0.4255[0.05256, 3.4450] 0.423275
Breast Feed Initiated  (Not at all)          
<1 Hr -2.2821 0.4201 -5.432 0.1021[0.04480, 0.2326] 5.58e-08**
[1, 2] Hr -2.0493 0.329 -6.228 0.1288[0.06760, 0.2455] 4.72e-10**
>2 Hr -0.9803 0.2607 -3.76 0.3752[0.22508, 0.6254] 0.000170**
Other Milk -1.285 1.0364 -1.24 0.2767[0.03628, 2.1094] 0.215046
** Significant (P-value < 0.05) and categories in the bracket are reference categories.
Table 4: Final fitted Cox’s Proportional Hazard Model of Premature infants’ by stratification of hypothermia.