Task: Answer Verification
Input (English): Question: Is the chromosome 7q region association with rheumatoid arthritis in females in a British population replicated in a North American case-control series?
Answer: While 2 SNPs on chromosome 7q appeared to be associated with RA in a North American cohort, the significance of this finding did not withstand correction for population substructure. Our results emphasize the need to carefully account for population structure to avoid false-positive disease associations.
Output (English): no