An adjusted association can still reflect the illness and treatment context in which a medicine is used.
The cross-sectional study included 271 women with epilepsy. Menstrual abnormalities were reported in 28.8%. Current clonazepam use, younger age at epilepsy onset and chronic use of other medicines were associated with irregular cycles in the analysis.
Exposure and outcome were assessed without random assignment or a clear experimental onset sequence. Epilepsy characteristics, co-medications and underlying health can influence both treatment choice and reproductive outcomes. The odds ratio is not an individual probability or proof that clonazepam caused a particular cycle disturbance.
For a causation opinion, obtain menstrual history before and after treatment, seizure pattern, other medicines and relevant clinical investigations. Keep irregular cycles distinct from infertility and pregnancy outcomes. The study identifies a signal for assessment rather than resolving an individual endocrine diagnosis.
Source: Publication PMC6188158. The case-review applications above are interpretive analysis.
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