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Table 2 Associations of perinatal death (PND) with gestational characteristics at both the tertiary and secondary care level hospitals (2001-2006)

From: Risk factors for perinatal death in two different levels of care: a case–control study

Gestational characteristics Hospital level III Hospital level II
  PND Controls OR p PND Controls OR p
  (n = 277) (n = 1081) (95% CI)   (n=22) (n=80) (95% CI)  
Gestation type         
  Single 236 (85.2%) 1023 (94.6%) 1.00   22 (100.0%) 78 (97.5%) 1.00  
  Multiple 41 (14.8%) (5.4%) 3.06 (2.00-4.68) <0.001(1) 0 (0.0%) (2.5%) - - - 1.000(2)
Gestational age (weeks)        
  37 - 41 (Term) 41 (14.8%) 644 (59.6%) 1.00   15 (66.6%) 68 (85.0%) 1.00  
  42 - 43 (Post–term) 11 (0.4%) 65 (0.6%) 2.62 (0.31-21.80) 0.351(2) 1 (4.8%) 0 (0.0%) - - - 0.180(2)
  34 - 36 (Late pre–term) 40 (14.3%) 147 (13.6%) 3.92 (2.49-6.19) <0.001(1) 0 (0.0%) 8 (10.0%) - - - 0.348(2)
  31 - 33 (Pre–term) 31 (11.2%) 69 (6.4%) 7.79 (4.61-13.16) <0.001(1) 1 (4.8%) 1 (1.2%) 4.86 (0.29-82.38) 0.327(2)
  29 - 30 (Extremely pre-term) 34 (12.3%) 17 (1.6%) 36.68 (18.93-71.09) <0.001(1) 0 (0.0%) 0 (0.0%) - - - 1.000(2)
  27 - 28 (Extremely pre-term) 33 (11.9%) 19 (1.8%) 31.86 (16.70-60.78) <0.001(1) 0 (0.0%) 2 (2.5%) - - - 1.000(2)
  24 - 26 (Periviable) 51 (18.5%) 86 (0.8%) 110.05 (50.83-238.28) <0.001(1) 2 (9.5%) 1 (1.3%) 9.71 (0.82-114.67) 0.089(2)
  22 - 23 (Not viable) 36 (13.0%) 32 (0.3%) 220.10 (65.04-744.79) <0.001(2) 3 (14.3%) 0 (0.0%) - - - 0.006(2)
Type of delivery         
  Vaginal 171 (61.7%) (54.9%) 1.00   17 (77.3%) 42 (52.5%) 1.00  
  Cesarean 106 (38.3%) (45.1%) 0.75 (0.57-0.98) 0.041(1) 5 (22.7%) 38 (47.5%) 0.32 (0.10-0.96) 0.037(1)
  1. (1)Chi-square test.
  2. (2)Fisher’s exact test.