Table 1

Characteristics of the study population in case and control participants

CaseControlp Value
Number518468
Age72.98±7.5769.59±9.30<0.001
Gender
 Male190 (36.7%)207 (44.2%)0.016
 Female328 (63.3%)261 (55.8%)
 BMI25.81±3.3324.40±3.72<0.001
K–L grade
 00246
 10222
 21940
 31040
 42200
  • BMI, body mass index; K–L, Kellgren–Lawrence.