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Table 3 A mutlivariable analysis of recovery from a critically low 1 minute to a normal 5 minute Apgar score

From: Factors associated with recovery from 1 minute Apgar score <4 in live, singleton, term births: an analysis of Malaysian National Obstetrics Registry data 2010–2012

  Normal vaginal deliveries (N = 704)b Deliveries by doctors (N = 995)c
  95% CI   95% CI
Factor OR Upper Lower OR Upper Lower
Age 20-29 1    1   
<20 1.46 0.74 2.81 1.69 0.99 2.89
30-39 1.39 0.82 2.34 1.15 0.83 1.59
40 3.23 0.56 15.72 2.57 1 7
Ethnicity Malay 1    1   
Chinese 0.47 0.15 1.26 1.03 0.56 1.89
Indian 5.13** 1.74 16.46 0.75 0.40 1.37
Orang Asal 0.12*** 0.04 0.29 0.34** 0.17 0.64
Other 0.22* 0.06 0.65 1.35 0.64 2.83
Missing 0.67 0.36 1.21 0.82 0.52 1.28
BMI Not Obese 1    1   
Obese 1.31 0.83 2.07 1.34* 1.00 1.8
Missing 5.34a 0.27 77.09 0.99 0.35 2.66
Diabetes Absent 1    1   
Present 2.09* 1.00 4.5 1.28 0.83 1.98
Parity 1 1    1   
2-3 0.72 0.44 1.17 0.91 0.66 1.25
4-5 0.61 0.25 1.38 0.83 0.49 1.40
6 0.78 0.21 2.48 0.60 0.24 1.43
Hb at delivery Hb > 11 1    1   
Hb ≤ 11 0.64 0.32 1.23 0.79 0.52 1.21
Missing 0.81 0.51 1.28 0.63** 0.47 0.84
Baby sex Female 1    1   
Male 1.15 0.75 1.77 0.83 0.63 1.09
Missinga 0.00 0.00
Birth weight Normal 1    1   
Low 1.07 0.57 1.93 1.16 0.82 1.64
Missing 1.88a 0.09 14.00 1.09 0.13 7.57
Foetal distress Absent 1    1   
Present 0.72 0.1 3.2 0.87 0.6 1.26
Induced No 1    1   
Yes 0.88 0.53 1.46 1.12 0.81 1.53
Delivery type Vaginal     1   
Breech     0.34 0.08 1.07
Vacuum Extraction     0.79 0.50 1.24
Elective CS     2.67** 1.39 5.23
Emerg. CS     1.70** 1.23 2.37
Delivered by Doctor 1      
Nurse 0.41*** 0.26 0.63    
  1. *p < .05, **p < .01, ***p < .001 based on a Wald test
  2. aSmall cell size < 5
  3. bEstimates adjusted for all other variables in the table except “Delivered by”
  4. cEstimates adjusted for all other variables in the table except “Delivery type”
  5. Separate sub-analyses were conducted for vaginal deliveries only comparing Doctors and Nurses (n = 704), and Doctor deliveries only comparing the type of delivery (n = 995)