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Table 3 Factors associated with preterm delivery (N = 500)

From: Association between lower uterine wall thickness measured at 18–22 weeks of gestation and risk of Preterm Birth: a prospective cohort study

Factors Mean ± SD or n (%) Univariate analysis Multivariate analysis
Term
(n = 436)
Preterm
(n = 64)
p -value Crude OR
(95% CI)
p -value Adjust OR (95% CI)
Age (years)
  18–24.9 117 (88.6) 15 (11.4)   1   
  25–34.9 199 (87.7) 28 (12.3) 0.785 1.10
(0.56, 2.14)
  
  ≥ 35 120 (85.1) 21 (14.9) 0.390 1.37
(0.67, 2.78)
  
Parity
  0 252 (88.4) 33 (11.6)   1   1
  ≥ 1 184 (85.6) 31 (14.4) 0.348 1.29
(0.76, 2.18)
0.359 1.29
(0.75, 2.22)
BMI (kg/m 2 )
  ≤ 18 50 (90.9) 5 (9.1)   1   1
  18–25 300 (88.0) 41 (12.0) 0.530 1.37
(0.52, 3.63)
0.627 1.28
(0.48, 3.42)
  > 25 86 (82.7) 18 (17.3) 0.168 2.09
(0.73, 5.98)
0.205 2.00
(0.69, 5.81)
LUW thickness
  ≥ 4.5 mm 405 (88.0) 55 (12.0)   1   1
  < 4.5 mm 31 (77.5) 9 (22.5) 0.061 2.14
(0.97, 4.73)
0.037 2.37
(1.05, 5.32)