Journal of Clinical Gynecology and Obstetrics, ISSN 1927-1271 print, 1927-128X online, Open Access
Article copyright, the authors; Journal compilation copyright, J Clin Gynecol Obstet and Elmer Press Inc
Journal website http://www.jcgo.org

Original Article

Volume 2, Number 1, June 2013, pages 15-19


Obstetric Factors Associated With Exclusive Breastfeeding in Japanese Women Who Expected Exclusive Breastfeeding Before Delivery at Term

Tables

Table 1. Analysis of Dichotomous Variables by the Prevalence of Exclusive Breastfeeding
 
Exclusive breastfeeding
YesNoP-valueCrude OR (95% CI)
Data are presented as number (%). OR, odds ratio; 95% CI, 95% confidence interval.
Total347253
Maternal age at delivery (years)
  - 34211 (61)163 (65)-1.0 (reference)
  35 -136 (39)90 (35)0.361.17 (0.83 - 1.6)
Parity
  0154 (44)136 (54)-1.0 (reference)
  1 -193 (56)117 (46)0.021.46 (1.1 - 2.0)
Hypertensive disorders
  No331 (95)246 (97)-1.0 (reference)
  Yes16 (5)7 (3)0.251.70 (0.69 - 4.2)
Oxytocin use
  No241 (69)161 (64)-1.0 (reference)
  Yes106 (31)98 (36)0.060.72 (0.51 - 1.0)
Delivery mode
  Normal vaginal delivery223 (65)181 (72)-1.0 (reference)
  Vacuum/forceps/breech delivery23 (6)21 (8)0.710.89 (0.48 - 1.1)
  Cesarean delivery101 (29)51 (20)0.021.61 (1.1 - 2.4)
Neonatal birth weight (g)
  - 2,49923 (7)24 (9)0.110.61 (0.33 - 1.1)
  2,500 - 3,499293 (84)186 (74)-1.0 (reference)
  3,500 -31 (9)43 (17)< 0.010.46 (0.28 - 0.75)
Neonatal asphyxia
  No344 (99)245 (97)-1.0 (reference)
  Yes3 (1)8 (3)0.040.27 (0.07 - 1.0)
Neonatal respitratory disorders
  No340 (98)242 (96)-1.0 (reference)
  Yes7 (2)11 (4)0.090.45 (0.17 - 1.2)
Early skin-to-skin contact
   (total)
    No154 (44)116 (46)-1.0 (reference)
    Yes193 (56)137 (54)0.721.06 (0.77 - 1.5)
   (vaginal deliveries only)
    No53 (22)65 (31)-1.0 (reference)
    Yes193 (78)137 (69)0.011.73 (1.1 - 2.6)
Neonatal care unit admission
  No332 (96)233 (92)-1.0 (reference)
  Yes15 (4)20 (8)0.370.72 (0.35 - 1.5)
Maternal blood loss
  < 1,000 mL288 (83)224 (89)-1.0 (reference)
  ≥ 1,000 mL59 (17)29 (11)0.061.58 (0.98 - 2.6)

 

Table 2. Adjusted Odds Ratios and 95% Confidence Intervals for the Prevalence of Exclusive Breastfeeding Using Logistic Multivariable Regression Analysis
 
P-valueAdjusted OR (95% CI)
OR, odds ratio; 95% CI, 95% confidence interval.
Parity
  0-1.0 (reference)
  1 -0.111.31 (0.94 - 1.8)
Delivery mode
  Normal vaginal delivery-1.0 (reference)
  Cesarean delivery0.211.29 (0.86 - 1.93)
Birth weight (g)
  2,500 - 3,499-1.0 (reference)
  3,500 -0.030.59 (0.37 - 0.94)
Neonatal asphyxia
  No-1.0 (reference)
  Yes0.080.36 (0.11 - 1.2)
Early skin-to-skin contact
   (vaginal deliveries only)
    No-1.0 (reference)
    Yes0.0461.54 (1.0 - 2.4)