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Table 1 Background characteristics of the participants (n = 8681)

From: Factors associated with mobility decrease leading to disability: a cross-sectional nationwide study in Japan, with results from 8681 adults aged 20-89 years

 

none

Stage1

Stage2

Stage3

Total

P

N(%)

5153

(59.4)

2746

(31.6)

504

(5.8)

278

(3.2)

8681

  

Age (years), mean ± SD

44.5

(16.1)

60.1

(15.7)

67.8

(15.1)

70.5

(14.7)

51.6

(18.2)

<  0.001

20-64 (n, %)

4369

(84.8)

1437

(52.3)

158

(31.4)

82

(29.5)

6046

(69.7)

 

65-74 (n, %)

620

(12.0)

769

(28.0)

126

(25.0)

53

(19.1)

1568

(18.1)

 

75-89 (n, %)

164

(3.2)

540

(19.7)

220

(43.7)

143

(51.4)

1067

(12.3)

 

Sex

          

<  0.001

Male

2407

(46.7)

922

(33.6)

176

(34.9)

102

(36.7)

3607

(41.6)

 

Female

2746

(53.3)

1824

(66.4)

328

(65.1)

176

(63.3)

5074

(58.5)

 

BMI (Kg/m2)

          

<  0.001

Underweight

537

(10.4)

203

(7.4)

36

(7.1)

26

(9.4)

802

(9.2)

 

Normal

3894

(75.5)

1970

(71.7)

311

(61.7)

183

(65.8)

6358

(73.2)

 

Overweight, Obese

722

(14.0)

573

(20.9)

157

(31.2)

69

(24.8)

1521

(17.5)

 

Hypertension (n, %)

478

(9.4)

692

(25.5)

220

(44.6)

131

(48.5)

1521

(17.8)

<  0.001

Diabetes mellitus (n, %)

88

(1.7)

137

(5.1)

42

(8.5)

31

(11.5)

298

(3.5)

<  0.001

Dyslipidaemia (n, %)

368

(7.2)

510

(18.8)

133

(27.0)

75

(27.8)

1086

(12.7)

<  0.001

Occupation (n, %)

          

<  0.001

Heavy

250

(4.9)

186

(6.8)

37

(7.4)

17

(6.2)

490

(5.7)

 

Intermediate

1309

(25.8)

970

(35.7)

189

(37.9)

94

(34.4)

2562

(29.9)

 

Light

2021

(39.8)

710

(26.1)

70

(14.0)

32

(11.7)

2833

(33.0)

 

Unemployed

312

(6.1)

479

(17.6)

146

(29.3)

103

(37.7)

1040

(12.1)

 

Miscellaneous

1189

(23.4)

376

(13.8)

57

(11.4)

27

(9.9)

1649

(19.2)

 

Sports club membership (n, %)

1014

(19.8)

552

(20.2)

108

(21.4)

46

(16.6)

1720

(19.9)

0.41

Frequency of physical activity/sports (n, %)

        

<  0.001

Rarely or Never

1989

(38.7)

1113

(40.7)

203

(40.4)

125

(45.5)

3430

(39.6)

 

A few times/ month

1029

(20.0)

382

(14.0)

57

(11.3)

27

(9.8)

1495

(17.3)

 

A few times/ week

1377

(26.8)

670

(24.5)

128

(25.5)

73

(26.6)

2248

(26.0)

 

Almost Everyday

751

(14.6)

571

(20.9)

115

(22.9)

50

(18.2)

1487

(17.2)

 

Food frequency score, mean ± SD

18.4

(5.0)

19.2

(5.0)

19.4

(5.0)

19.7

(5.2)

18.7

(5.0)

<  0.001

Smoking (n, %)

597

(11.6)

275

(10.1)

34

(6.8)

19

(6.9)

925

(10.7)

<  0.001

Anaemia (n, %)

679

(13.2)

411

(15.0)

75

(14.9)

53

(19.1)

1218

(14.1)

0.010

History of heart diseases (n, %)

79

(1.5)

135

(4.9)

46

(9.1)

30

(10.8)

290

(3.4)

<  0.001

History of stroke (n, %)

27

(0.5)

55

(2.0)

19

(3.8)

22

(7.9)

123

(1.4)

<  0.001

Chronic kidney disease (n, %)

5

(0.1)

11

(0.4)

4

(0.8)

2

(0.8)

22

(0.3)

<  0.001

History of orthopaedic surgery (n, %)

510

(10.8)

384

(15.5)

93

(20.6)

76

(30.2)

1063

(13.5)

<  0.001

  1. SD standard deviation, BMI body mass index