Skip to main content

Table 2 Potential risk factors for mean birth weight difference, Camp Lejeune, 1968–1985

From: Evaluation of contaminated drinking water and preterm birth, small for gestational age, and birth weight at Marine Corps Base Camp Lejeune, North Carolina: a cross-sectional study

Risk factor Mean birth weight (total births = 10,990)
#, % MBW difference (grams)
Race   
 “white” 8388, 76.3 Reference
 “other” 2602, 23.7 −170.6 (−191.3, −149.8)
Prenatal care*   
 Adequate 4985, 45.4 Reference
 Inadequate 6003, 54.6 −71.1 (−89.0, −53.2)
Rank   
 Officer 1578, 14.4 Reference
 Enlisted 9412, 85.6 −92.4 (−117.7, −67.0)
Mother’s age   
 <20 1772, 16.1 −57.5 (−81.9, −33.0)
 20-29 8155, 74.2 Reference
 30-34 850, 7.7 71.9 (38.3, 105.6)
 ≥35 213, 1.9 68.7 (3.9, 133.5)
Father’s age   
 <20 557, 5.2 −22.2 (−63.0, 18.6)
 20-29 8874, 80.8 Reference
 30-34 1121, 10.2 80.7 (51.1, 110.3)
 ≥35 426, 3.9 58.9 (12.6, 105.3)
Parity   
 Multiparous 7161, 65.2 Reference
 Primiparous 3822, 34.8 −69.9 (−88.6, −51.2)
Mom’s education   
Not a college graduate 10090, 91.8 Reference
College grad 896, 8.2 74.4 (41.8, 106.9)
Dad’s education   
Not a college graduate 9559, 87.1 Reference
College graduate 1421, 12.9 81.8 (55.3, 108.4)
Sex of child   
 Female 5470, 49.8 Reference
 Male 5520, 50.2 145.9 (128.2, 163.5)
Previous fetal death   
 0 9216, 83.9 Reference
 ≥ 1 1768, 16.1 −6.6 (−30.5, 18.1)
  1. * “Adequate” if care began during 1st trimester and sufficient number of visits given gestational age of child at birth (Kessner 1973); rank of military member.