Skip to main content
. Author manuscript; available in PMC: 2026 Feb 26.
Published in final edited form as: Am J Med Genet A. 2019 Jul 16;179(9):1846–1856. doi: 10.1002/ajmg.a.61296

Table 3.

Maternal health conditions and behaviors among primary congenital glaucoma cases and controls, National Birth Defects Prevention Study, 2000-2011

Controls
(n=10,084)
All Cases
(n=107)
Isolated Cases
(n=92)
n (%) n (%) cOR (95% CI) aOR (95% CI) n (%) cOR (95% CI) aOR (95% CI)
Pre-pregnancy BMI (kg/m2)
 Underweight (<18.5) 500 (5.2) 2 (2.0) 0.37 (0.04-1.42) -- 2 (2.4) 0.45 (0.05-1.73) --
 Normal weight (18.5-24.9) 5,044 (52.6) 54 (54.6) 1.00 (Ref) 1.00 (Ref) 45 (53.6) 1.00 (Ref) 1.00 (Ref)
 Overweight (25.0-29.9) 2,220 (23.1) 23 (23.2) 0.97 (0.59-1.58) 0.92 (0.55-1.51) 20 (23.8) 1.01 (0.60-1.71) 0.99 (0.58-1.70)
 Obese (>=30.0) 1,830 (19.1) 20 (20.2) 1.02 (0.61-1.71) 0.99 (0.58-1.67) 17 (20.2) 1.04 (0.59-1.82) 0.99 (0.56-1.76)
Diabetes
 Gestational diabetes 717 (7.1) 7 (6.5) 0.94 (0.43-2.02) 1.14 (0.52-2.51) 5 (5.4) 0.77 (0.31-1.91) 0.95 (0.38-2.38)
 Pre-pregnancy diabetes 71 (0.7) 3 (2.8) 4.05 (0.80-12.67) -- 3 (3.3) 4.68 (0.92-14.69) --
 No diabetes 9,296 (92.2) 97 (90.7) 1.00 (Ref) 1.00 (Ref) 84 (91.3) 1.00 (Ref) 1.00 (Ref)
History of hypertension
 Yes 1,391 (13.9) 18 (17.1) 1.28 (0.77-2.14) 1.34 (0.79-2.28) 16 (17.8) 1.34 (0.78-2.31) 1.40 (0.80-2.45)
 No 8,622 (86.1) 87 (82.9) 1.00 (Ref) 1.00 (Ref) 74 (82.2) 1.00 (Ref) 1.00 (Ref)
History of seizure
 Yes 277 (2.8) 7 (6.7) 2.51 (1.16-5.45) 2.73 (1.25-5.97) 6 (6.7) 2.51 (1.09-5.79) 2.76 (1.19-6.41)
 No 9,729 (97.2) 98 (93.3) 1.00 (Ref) 1.00 (Ref) 84 (93.3) 1.00 (Ref) 1.00 (Ref)
Thyroid disease
 Yes 242 (2.4) 4 (3.7) 1.58 (0.42-4.22) -- 3 (3.3) 1.37 (0.28-4.19) --
 No 9,842 (97.6) 103 (96.3) 1.00 (Ref) -- 89 (96.7) 1.00 (Ref) --
Smoking§
 Yes 1,735 (17.7) 10 (9.8) 0.51 (0.26-0.97) 0.50 (0.25-0.98) 8 (9.1) 0.47 (0.23-0.96) 0.46 (0.22-0.97)
 No 8,071 (82.3) 92 (90.2) 1.00 (Ref) 1.00 (Ref) 80 (90.9) 1.00 (Ref) 1.00 (Ref)
Alcohol§
 Yes 3,779 (38.6) 27 (26.5) 0.57 (0.37-0.89) 0.58 (0.37-0.92) 24 (27.3) 0.60 (0.37-0.95) 0.61 (0.37-0.99)
 No 6,005 (61.4) 75 (73.5) 1.00 (Ref) 1.00 (Ref) 64 (72.7) 1.00 (Ref) 1.00 (Ref)
Periconceptional folic acid supplement
 No use 2,273 (23.1) 21 (20.6) 1.00 (Ref) 1.00 (Ref) 21 (23.9) 1.00 (Ref) 1.00 (Ref)
 <1/day 4,714 (47.9) 51 (50.0) 1.17 (0.70-1.95) 1.23 (0.72-2.10) 42 (47.7) 0.96 (0.57-1.63) 0.97 (0.56-1.70)
 Daily use 2,853 (29.0) 30 (29.4) 1.14 (0.65-1.99) 1.37 (0.73-2.57) 25 (28.4) 0.95 (0.53-1.70) 1.06 (0.55-2.05)
Caffeine intake†† (quartiles)
 Q1 2,448 (25.0) 30 (29.7) 1.00 (Ref) 1.00 (Ref) 27 (31.0) 1.00 (Ref) 1.00 (Ref)
 Q2 2,444 (25.0) 24 (23.8) 0.80 (0.47-1.37) 0.75 (0.43-1.31) 21 (24.1) 0.78 (0.44-1.38) 0.72 (0.40-1.30)
 Q3 2,446 (25.0) 25 (24.8) 0.83 (0.49-1.42) 0.81 (0.46-1.41) 20 (23.0) 0.74 (0.42-1.33) 0.69 (0.37-1.27)
 Q4 2,445 (25.0) 22 (21.8) 0.73 (0.42-1.28) 0.79 (0.44-1.39) 19 (21.8) 0.70 (0.39-1.27) 0.73 (0.40-1.34)
Total folate intake†† (quartiles)
 Q1 2,476 (25.0) 30 (29.1) 1.00 (Ref) 1.00 (Ref) 24 (27.0) 1.00 (Ref) 1.00 (Ref)
 Q2 2,477 (25.0) 21 (20.4) 0.70 (0.40-1.23) 0.72 (0.41-1.27) 20 (22.5) 0.83 (0.46-1.51) 0.86 (0.47-1.58)
 Q3 2,477 (25.0) 22 (21.4) 0.73 (0.42-1.27) 0.72 (0.40-1.27) 19 (21.4) 0.79 (0.43-1.45) 0.77 (0.41-1.46)
 Q4 2,477 (25.0) 30 (29.1) 1.00 (0.60-1.66) 1.00 (0.59-1.70) 26 (29.2) 1.08 (0.62-1.89) 1.10 (0.61-1.97)
Any x-ray/scan‡‡
 Yes 1,303 (13.1) 17 (16.4) 1.30 (0.77-2.19) 1.31 (0.76-2.26) 17 (19.1) 1.57 (0.92-2.67) 1.59 (0.92-2.77)
 No 8,667 (86.9) 87 (83.7) 1.00 (Ref) 1.00 (Ref) 72 (80.9) 1.00 (Ref) 1.00 (Ref)
Any illicit substance abuse‡‡
 Yes 536 (5.3) 5 (4.7) 0.87 (0.35-2.15) 0.84 (0.34-2.11) 5 (5.4) 1.02 (0.41-2.53) 1.00 (0.40-2.51)
 No 9,548 (94.7) 102 (95.3) 1.00 (Ref) 1.00 (Ref) 87 (94.6) 1.00 (Ref) 1.00 (Ref)
Fever§
 Yes 2,015 (20.1) 23 (21.9) 1.11 (0.70-1.77) 1.26 (0.78-2.02) 19 (21.1) 1.06 (0.64-1.77) 1.20 (0.72-2.01)
 No 8,003 (79.9) 82 (78.1) 1.00 (Ref) 1.00 (Ref) 71 (78.9) 1.00 (Ref) 1.00 (Ref)
Respiratory infection§
 Yes 4,913 (52.7) 46 (49.5) 0.88 (0.59-1.32) 1.02 (0.66-1.57) 40 (51.3) 0.95 (0.61-1.48) 1.14 (0.71-1.84)
 No 4,418 (47.4) 47 (50.5) 1.00 (Ref) 1.00 (Ref) 38 (48.7) 1.00 (Ref) 1.00 (Ref)
Genitourinary infection§
 Yes 1,738 (17.5) 19 (18.1) 1.04 (0.63-1.72) 1.03 (0.61-1.73) 17 (18.9) 1.10 (0.65-1.87) 1.08 (0.62-1.88)
 No 8,191 (82.5) 86 (81.9) 1.00 (Ref) 1.00 (Ref) 73 (81.1) 1.00 (Ref) 1.00 (Ref)
Sexually transmitted infection§
 Yes 219 (2.2) 6 (5.6) 2.68 (1.16-6.16) 2.75 (1.17-6.44) 6 (6.5) 3.14 (1.36-7.27) 3.27 (1.39-7.70)
 No 9,865 (97.8) 101 (94.4) 1.00 (Ref) 1.00 (Ref) 86 (93.5) 1.00 (Ref) 1.00 (Ref)

cOR=crude odds ratio; aOR=adjusted odds ratio; CI=95% confidence interval; BMI=body mass index

Adjusted for maternal age, maternal race/ethnicity, pre-pregnancy BMI, and periconceptional folic acid supplement use

Exact confidence limits computed

§

Beginning one month prior to pregnancy through delivery

Beginning one month prior to pregnancy through the end of the first trimester

††

Reported during the year prior to pregnancy

‡‡

Beginning three months prior to pregnancy through delivery