Risk factors for primary congenital glaucoma in the National Birth Defects Prevention Study

Area of Science:

• Ophthalmology
• Pediatrics
• Genetics

Background:

• Primary congenital glaucoma (PCG) is a rare but severe ocular birth defect.
• While genetic factors are known, nongenetic risk factors for PCG remain largely unexplored.
• Understanding these factors is crucial for prevention and early intervention strategies.

Purpose of the Study:

• To investigate potential nongenetic risk factors associated with primary congenital glaucoma (PCG).
• To analyze these associations in a large, population-based cohort within the United States.
• To differentiate risk factors for all PCG cases versus isolated PCG.

Main Methods:

• Utilized data from the National Birth Defects Prevention Study (NBDPS), a case-control study.
• Included 107 infants with PCG and 10,084 control infants without birth defects (2000-2011).
• Collected data via maternal interviews on clinical, demographic, and health history; employed adjusted odds ratios (aORs) for analysis.

Main Results:

• Identified significant associations between PCG and term low birth weight, non-Hispanic Black maternal race/ethnicity, maternal history of seizure, maternal antihypertensive use, and maternal sexually transmitted infections.
• These factors were also associated with isolated PCG.
• Maternal use of nonsteroidal anti-inflammatory drugs was additionally linked to isolated PCG.

Conclusions:

• This study highlights several significant nongenetic risk factors for primary congenital glaucoma.
• Findings suggest that factors beyond genetics play a role in PCG development.
• These identified risk factors provide targets for future research and potential public health interventions.