Table 1 Characteristics of the study populations at baseline

Setting

Community

Hospital

Number of participants

1822

855

Age^a, years (mean ± SD)

56.01 ± 8.84

63.47 ± 9.41

<0.01

BMI^a, kg/m² (mean, SD)

25.13 ± 3.40

27.46 ± 4.69

<0.01

Women (n)

1009 (55.38%)

420 (59.32%)

0.22

Knee pain at follow-up

533 (29.66%)

333 (47.03%)

<0.01

Pain elsewhere (%)

968 (54.05%)

370 (52.26%)

<0.01

Knee injury (%)

201 (11.19%)

266 (37.57%)

<0.01

Varus knee alignment (%)

60 (3.37%)

212 (24.8%)

<0.01

Valgus knee alignment (%)

44 (2.47%)

384 (44.9%)

<0.01