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Table 1 Age and gender of cases and controls (Commercial)

From: Chiropractic care and the risk of vertebrobasilar stroke: results of a case–control study in U.S. commercial and Medicare Advantage populations

Variable Cases (n = 1159) Controls (n = 4633)
Age: mean (median) 65.1 (64.7) 65.1 (64.7)
Males: n (%) 751 (64.8) 3001 (64.8)