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Table 3 Predictors of discrepancy in reporting birth outcomes, the Bogalusa Babies study

From: Comparison of reproductive history gathered by interview and by vital records linkage after 40 years of follow-up: Bogalusa Babies

  discrepancy in LBW discrepancy in PTB difference in birthweight difference in gestational age
  OR 95% CI OR 95% CI beta 95% CI beta 95% CI
Black race 2.77 1.67–4.61 0.97 0.72–1.31 −38 −70, −4.9 − 0.39 −0.58, − 0.2
ever smoker 0.86 0.50–1.48 0.82 0.58–1.16 −13 −47, 20 0.05 −0.16, 0.26
education
  < high school 3.71 1.58–8.74 0.65 0.33–1.27 16 −43, 75 −0.45 −0.84, − 0.05
 high school 2.07 0.94–4.56 1.26 0.82–1.93 13 −32, 5 0.00 −0.28, 0.27
 some college/associates 2.02 0.93–4.38 1.09 0.72–1.64 13 −24, 50 0.04 −0.20, 0.28
 college+ 1.00   1.00   0   0.00  
primiparous 1.72 1.06–2.80 1.01 0.75–1.34 18.6 −7.1, 44.3 −0.28 −0.48, − 0.08
age at youngest visit 0.98 0.92–1.05 0.98 0.93–1.02 0.52 −3.1, 4.1 0.03 0.00, 0.06
age at oldest visit 1.00 0.98–1.02 0.99 0.98–1.01 0.62 −0.47, 1.72 0.01 0.01, 0.02
age in 2018 0.99 0.95–1.02 0.98 0.96–1.00 1.41 −0.50, 3.33 0.03 0.02, 0.04
year at first visit 1.01 0.98–1.04 1.01 0.99–1.03 −1.48 −3.4, 0.4 −0.03 − 0.04, − 0.01
year at most recent visit 1.01 0.98–1.04 1.00 0.98–1.02 0.32 −1.43, 2.08 0.01 −0.00, 0.02
time since pregnancy 0.97 0.93–1.00 0.98 0.96–1.01 1.98 −0.46, 4.43 0.07 0.06, 0.09
year of pregnancy 1.04 1.00–1.08 1.02 0.99–1.04 −1.98 −4.43, 0.46 −0.07 − 0.09, 0.06
BMI 1.01 0.96–1.06 0.98 0.94–1.01 2.4 −0.14, 4.93 0.01 −0.01, 0.03
child BMI 1.01 0.93–1.10 0.98 0.93–1.03 6.6 2.61, 10.65 −0.02 − 0.05, 0.01
adolescent BMI 1.02 0.96–1.08 0.97 0.93–1.01 1.3 −2.34, 4.94 −0.03 −0.05, − 0.00
adult BMI 1.00 0.97–1.05 1.00 0.97–1.03 1.9 −0.59, 4.38 0.01 −0.01, 0.03
cholesterol 1.00 0.99–1.01 1.00 0.99–1.00 0.37 −0.19, 0.94 0.00 −0.00, 0.01
child cholesterol 1.00 0.99–1.01 1.00 0.99–1.00 −0.10 −0.75, 0.56 0.00 −0.00, 0.00
adolescent cholesterol 1.00 0.99–1.01 1.00 1.00–1.01 0.12 −0.56, 0.79 0.00 −0.00, 0.01
adult cholesterol 1.00 0.99–1.00 1.00 0.99–1.00 0.78 0.17, 1.39 0.00 −0.00, 0.01
systolic blood pressure 1.02 1.00–1.04 0.99 0.97–1.01 1.48 −0.39, 3.36 0.02 0.01, 0.03
child SBP 1.00 0.97–1.03 0.99 0.97–1.01 2.46 0.44, 4.48 0.01 −0.01, 0.02
adolescent SBP 1.02 0.99–1.05 1.00 0.98–1.02 1.21 −1.26, 3.69 0.01 −0.00, 0.03
adult SBP 1.01 0.98–1.04 0.99 0.97–1.01 0.81 −1.16, 3.24 0.02 0.00, 0.03
  1. LBW low birthweight, PTB preterm birth, BMI body mass index, SBP systolic blood pressure