Table 6 Univariate logistic regression analysis of factors potentially associated with subjective health status

Age (years)

63.9 ± 9.8

64.6 ± 9.3

0.992

(0.961–1.024)

0.623

Sex (male/female)

35/147

8/47

1.399

(0.607–3.225)

0.431

Body mass index (kg/m²)

23.8 ± 3.6

23.9 ± 3.9

0.998

(0.991–1.083)

0.956

Hospitalization days (day)

14.9 ± 5.2

15.9 ± 5.6

0.966

(0.916–1.019)

0.200

Preoperative range of motion (°)

 Flexion

92.3 ± 17.5

90.2 ± 19.1

1.007

(0.990–1.023)

0.441

 Abduction

19.3 ± 8.5

16.6 ± 9.0

1.037

(1.000–1.076)

0.048

 Adduction

10.7 ± 8.2

9.5 ± 4.9

1.032

(0.972–1.096)

0.301

 External rotation

29.0 ± 11.8

28.2 ± 13.4

1.006

(0.981–1.031)

0.657

 Internal rotation

15.7 ± 12.0

15.9 ± 13.1

0.994

(0.970–1.019)

0.644

Hip abductor muscle strength (%BW)

 Preoperative

20.3 ± 8.6

17.6 ± 9.3

1.039

(1.000–1.079)

0.049

 Discharge

17.7 ± 8.0

14.2 ± 7.5

1.069

(1.012–1.129)

0.018

Knee extension muscle strength (%BW)

 Preoperative

35.9 ± 14.2

32.9 ± 14.3

1.017

(0.994–1.040)

0.162

 Discharge

29.6 ± 13.5

26.5 ± 13.0

1.014

(0.985–1.044)

0.343

Comfortable 10-m gait speed (m/s)

 Preoperative

1.0 ± 0.3

0.9 ± 0.2

4.345

(1.286–14.678)

0.018

 Discharge

0.9 ± 0.5

0.8 ± 0.3

1.986

(0.538–7.333)

0.304

Maximum 10-m gait speed (m/s)

 Preoperative

1.4 ± 0.4

1.2 ± 0.4

3.441

(1.469–8.063)

0.004

 Discharge

1.1 ± 0.3

1.1 ± 0.4

1.937

(0.661–5.681)

0.228

Participation rate of sports activity (%)

 Preoperative

52.7

58.2

0.802

(0.436–1.476)

0.479

 Postoperative

61

47.3

1.744

(0.950–3.201)

0.073

JHEQ (points)

62.6 ± 13.6

51.2 ± 14.4

1.056

(1.032–1.081)

< 0.001

Forgotten joint score (points)

75.0 ± 18.8

47.8 ± 24.3

1.058

(1.039–1.078)

< 0.001

EQ-5D-5L(0.01 point per increase)

0.9 ± 0.1

0.7 ± 0.2

1.100

(1.065–1.137)

< 0.001

EQ VAS (mm)

87.0 ± 11.4

73.6 ± 17.4

1.067

(1.040–1.095)

< 0.001

UCLA activity score

5.4 ± 1.9

4.3 ± 1.5

1.514

(1.191–1.924)

0.001