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Table 2 Bivariate analysis of recovery from a critically low 1 minute to a normal 5 minute Apgar

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

  5 minute Apgar 95% CI
Factor <7 ≥7 Total Odds ratio Lower Upper
Age 20-29 688 274 962 1   
<20 108 37 145 0.86 0.57 1.27
30-39 299 138 437 1.16 0.91 1.48
40 20 16 36 2.01* 1.01 3.93
Ethnicity Malay 525 344 869 1   
Chinese 47 23 70 0.75 0.44 1.24
Indian 39 25 64 0.98 0.58 1.64
Orang Asal 286 15 301 0.08*** 0.04 0.13
Other 63 15 78 0.36*** 0.2 0.63
Missing 155 43 198 0.42*** 0.29 0.60
BMI Not Obese 800 271 1071 1   
Obese 303 187 490 1.82*** 1.45 2.29
Missing 12 7 19 1.72 0.64 4.33
Diabetes Absent 1,057 407 1,464 1   
Present 58 58 116 2.66*** 1.77 3.81
Parity 1 482 252 734 1   
2-3 439 153 592 0.67*** 0.52 0.85
4-5 137 46 183 0.64* 0.44 0.92
6 57 14 72 0.47* 0.25 0.84
Hb at delivery Hb > 11 343 190 533 1   
Hb ≤ 11 229 65 294 0.51*** 0.37 0.71
Missing 543 210 753 0.7** 0.55 0.89
Baby sex Female 396 186 582 1   
Male 584 274 858 1 0.8 1.25
Missing 135 5 140 0.08*** 0.03 0.18
Birth weight Normal 820 375 1,195 1   
Low 161 86 247 1.17 0.87 1.56
Missing 134 4 138 0.07*** 0.02 0.16
Foetal distress Absent 1,014 398 1,412 1   
Present 101 67 168 1.69** 1.21 2.35
Induced No 765 348 1,113 1   
Yes 350 117 467 0.73* 0.57 0.94
Delivery type Normal 572 144 716 1   
Breech 19 3 22 0.63 0.15 1.87
Vacuum Extraction 107 41 148 1.52* 1.00 2.27
Elective CS 19 30 49 6.27*** 3.46 11.64
Emerg. CS 265 242 507 3.62*** 2.82 4.68
Missing 133 5 138 0.15*** 0.05 0.34
Delivered by Doctor 585 410 995 1   
Nurse 387 49 436 0.18*** 0.13 0.25
Othera 10 1 11 0.14 0.01 0.75
Missing 133 5 138 0.05*** 0.02 0.12
  1. *p < .05, **p < .01, ***p < .001 based on a Wald test
  2. aSmall cell size < 5