Table 1 Demographic characteristics of study participants by case status
From: Prenatal exposure to consumer product chemical mixtures and size for gestational age at delivery
Median (25th, 75th percentile) or n (%) | |||
|---|---|---|---|
SGA (n = 31) | AGA (n = 31) | LGA (n = 28) | |
Matched Variables | |||
Maternal Age (years) | 33.6 (26.9, 37.3) | 32.4 (30.4, 37.5) | 34.5 (30.4, 37.1) |
Pre-pregnancy BMI (kg/m2) | 23.0 (20.2, 27.9) | 23.0 (22.3, 27.4) | 25.7 (22.1, 27.9) |
Race/Ethnicity | |||
White | 19 (61) | 18 (58) | 17 (61) |
Black | 6 (19) | 6 (19) | 6 (21) |
Other1 | 6 (19) | 7 (23) | 5 (18) |
Gestational Age (weeks) | 37.9 (37.1, 38.6) | 39.0 (38.3, 39.6) | 39.1 (38.8, 39.8) |
Non-matched Variables | |||
Birth weight (kg) | 2.3 (2.2, 2.4) | 3.2 (3.0, 3.4) | 4.2 (4.1, 4.3) |
Birth weight percentile (%) | 3.0 (1.0, 4.0) | 35.0 (23.0, 46.0) | 96.0 (93.0, 97.5) |
Maternal Insurance | |||
Private | 22 (71) | 24 (77) | 20 (71) |
Public | 9 (29) | 7 (23) | 8 (29) |
Maternal Education | |||
≤ High School | 3 (10) | 3 (10) | 1 (4) |
Some college or technical school | 8 (26) | 8 (26) | 6 (21) |
≥ College graduate | 20 (65) | 20 (65) | 21 (75) |
Parity | |||
Nulliparous | 7 (23) | 10 (32) | 7 (25) |
Parous | 24 (77) | 21 (68) | 21 (75) |
Smoking During Pregnancy | |||
No | 27 (87) | 29 (94) | 28 (100) |
Yes | 4 (13) | 2 (6) | 0 (0) |
Alcohol Use During Pregnancy | |||
No | 29 (94) | 28 (90) | 27 (96) |
Yes | 2 (6) | 3 (10) | 1 (4) |
Fetal Sex | |||
Female | 19 (61) | 18 (58) | 13 (46) |
Male | 12 (39) | 13 (42) | 15 (54) |