Table 7 Multivariate analysis for fall about physical function

Age, yrs:

  < 65 years

ref

ー

1.21

ref

ー

1.21

 65–74 years

0.98 (0.65–1.49)

0.9370

0.99 (0.65–1.50)

0.9521

  ≥ 75 years

1.22 (0.74–2.00)

0.4286

1.29 (0.79–2.11)

0.3114

Gender:

 Male

ref

–

1.11

ref

–

1.11

 Female

1.08 (0.77–1.52)

0.6426

1.07 (0.76–1.51)

0.6923

BMI:

  < 18.5

1.53 (0.60–3.91)

0.3737

1.06

1.51 (0.59–3.83)

0.3876

1.07

 18.5–24.9

ref

–

ref

–

 25.0–29.9

1.18 (0.84–1.65)

0.3392

1.16 (0.83–1.62)

0.3967

  ≥ 30

0.54 (0.20–1.45)

0.2209

0.52 (0.19–1.41)

0.1976

Sleeping pill use:

 Absence

ref

–

1.15

ref

–

1.15

 Presence

0.72 (0.45–1.13)

0.1552

0.72 (0.46–1.14)

0.1642

Knee pain:

 No

ref

–

1.22

ref

–

1.21

 Mild

1.51 (1.03–2.22)

0.0345

1.53 (1.04–2.25)

0.0294

 Moderate

1.70 (1.03–2.80)

0.0373

1.76 (1.07–2.88)

0.0266

 Severe

3.11 (1.76–5.52)

0.0001

3.11 (1.75–5.51)

0.0001

Knee crepitus:

 Absence

ref

–

1.18

ref

–

1.18

 Presence

0.86 (0.60–1.24)

0.4152

0.86 (0.60–1.24)

0.4176

CESD–10:

 Not depressive

ref

–

1.13

ref

–

1.12

 Depressive

1.95 (1.27–2.97)

0.0021

2.01 (1.32–3.05)

0.0012

TUG:

 Normal mobility

ref

–

1.15

–

–

–

 Decreased mobility

1.79 (1.14–2.80)

0.0114

–

–

OLST:

 Normal balance

–

–

–

ref

–

1.14

 Balance disability

–

–

1.45 (0.96–2.20)

0.0767

Radiographic KOA severity:

 No OA

ref

–

1.29

ref

–

1.29

 Mild OA

0.81 (0.44–1.49)

0.4936

0.83 (0.45–1.53)

0.5540

 Severe OA

1.10 (0.57–2.14)

0.7677

1.15 (0.59–2.22)

0.6874