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Table 1 Sample characteristics

From: Sex differences in negative affect and postoperative pain in patients undergoing total knee arthroplasty

Variables Overall sample Men (n = 50) Women (n = 50) p
Age 65.66 (8.82) 67.10 (9.36) 64.20 (8.07) .63
Ethnicity (%, white) 87% 86% 87.8% .80
Marital status (%, married) 71% 82% 60% .02
Employment (%, working) 40% 38% 42% .68
Body mass index (BMI) 30.92 (6.31) 30.87 (6.18) 30.98 (6.53) .94
Baseline negative affect (PROMIS) 12.54 (4.43) 11.36 (4.18) 13.78 (4.39) .003
  1. Values in parentheses are standard deviations