Table 5 Univariate analysis for falls

Age, yrs:

  < 65 years

ref

ー

 65–74 years

1.14 (0.77–1.69)

0.5073

  ≥ 75 years

1.66 (1.08–2.56)

0.0200

Gender:

 Male

ref

–

 Female

1.29 (0.94–1.76)

0.1097

BMI:

  < 18.5

1.52 (0.63–3.66)

0.3472

 18.5–24.9

ref

–

 25.0–29.9

1.35 (0.98–1.86)

0.0660

  ≥ 30

0.67 (0.26–1.75)

0.4168

Sleep pill use:

 Absence

ref

–

 Presence

1.19 (0.80–1.78)

0.3895

Knee pain:

 No

ref

–

 Mild

1.63 (1.12–2.35)

0.0099

 Moderate

2.00 (1.26–3.18)

0.0034

 Severe

4.08 (2.44–6.82)

 < 0.0001

Knee crepitus:

 Absence

ref

–

 Presence

1.24 (0.91–1.71)

0.1778

CESD–10:

 Not depressive

ref

–

 Depressive

2.20 (1.50–3.22)

 < 0.0001

TUG:

 Normal mobility

ref

–

 Decreased mobility

2.51 (1.69–3.74)

 < 0.0001

OLST:

 Normal balance

ref

–

 Balance disability

2.02 (1.41–2.91)

0.0002

Radiographic KOA severity:

 No OA

ref

–

 Mild OA

0.86 (0.47–1.57)

0.6299

 Severe OA

1.55 (0.85–2.83)

0.1565