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Table 1 Baseline sociodemographic, lifestyle, and clinical characteristics of HKOA participants according to the frequency of baseline physical activity, n (%)

From: Association of physical activity with physical function and quality of life in people with hip and knee osteoarthritis: longitudinal analysis of a population-based cohort

 

All,

n = 1086

Frequency of baseline physical activity

p

Non-frequent,

n = 855

Frequent,

n = 69

Very frequent,

n = 162

Sociodemographic

Women

774 (71.3%)

603 (70.5%)

57 (82.6%)

114 (70.4%)

0.099

Age

    

0.001

 Mean (SD)

65.4 (11.4)

66.1 (11.3)

65.1 (9.7)

61.7 (12.2)

 

 < 55

187 (17.2%)

141 (16.5%)

8 (11.6%)

38 (23.5%)

 

 55–64

288 (26.5%)

211 (24.7%)

23 (33.3%)

54 (33.3%)

 

 65–74

368 (33.9%)

290 (33.9%)

27 (39.1%)

51 (31.5%)

 

  ≥ 75

243 (22.4%)

213 (24.9%)

11 (15.9%)

19 (11.7%)

 

Region (NUTS II)

    

0.502

 North

290 (26.7%)

235 (27.5%)

17 (24.6%)

38 (23.5%)

 

 Center

268 (24.7%)

216 (25.3%)

18 (26.1%)

34 (21.0%)

 

 Lisbon

183 (16.9%)

134 (15.7%)

11 (15.9%)

38 (23.5%)

 

 Alentejo

74 (6.8%)

61 (7.1%)

3 (4.4%)

10 (6.2%)

 

 Algarve

22 (2.0%)

16 (1.9%)

3 (4.4%)

3 (1.9%)

 

 Islands

249 (22.9%)

193 (22.6%)

17 (24.6%)

39 (24.1%)

 

Marital status

    

0.613

 With partner

696 (64.1%)

544 (63.6%)

48 (69.6%)

104 (64.2%)

 

Education level

    

 < 0.001

 < 4 years

268 (24.7%)

240 (28.1%)

8 (11.6%)

20 (12.5%)

 

 4–9 years

685 (63.1%)

543 (63.5%)

47 (68.1%)

95 (58.6%)

 

 ≥ 10 years

133 (12.2%)

72 (8.4%)

14 (20.3%)

47 (29.0%)

 

Lifestyle

BMI (kg/m2)

    

0.119

 Underweight/normal weight

190 (18.9%)

144 (18.4%)

10 (15.5%)

36 (22.9%)

 

 Overweight

416 (41.3%)

313 (40.0%)

34 (51.5%)

69 (44.0%)

 

 Obese

400 (39.8%)

326 (41.6%)

22 (33.3%)

52 (33.1%)

 

Smoking habits

    

0.262

 Never

812 (74.8%)

643 (75.3%)

55 (79.7%)

114 (70.4%)

 

 In the past

196 (18.1%)

145 (17.0%)

11 (15.9%)

40 (24.7%)

 

 Daily/occasionally

77 (7.1%)

66 (7.7%)

3 (4.4%)

8 (4.9%)

 

Clinical

Multimorbidity

704 (71.5%)

566 (73.4%)

39 (62.9%)

99 (65.1%)

0.036

Hospitalization (previous year)

130 (11.9%)

112 (13.1%)

6 (7.7%)

12 (7.4%)

0.084

Unmanageable pain levels (≥ 5 NPRS)

    

0.017

 Yes

764 (73.9%)

618 (75.9%)

45 (66.2%)

101 (66.4%)

 

Clinical severity (inverted HOOS/KOOS)

    

 < 0.001

 Low

336 (33.7%)

239 (30.4%)

25 (38.5%)

72 (49.7%)

 

 Medium

332 (33.3%)

266 (33.8%)

23 (35.4%)

43 (29.7%)

 

 High

328 (32.9%)

281 (35.8%)

17 (26.1%)

30 (20.7%)

 
  1. The sample size is not consistent due to missing values in some variables: BMI—all (n = 1006), non-frequent physical activity (n = 783), frequent (n = 66), very frequent (n = 157); smoking habits—all (n = 1085), non-frequent (n = 854); multimorbidity—all (n = 985), non-frequent (n = 771), frequent (n = 62), very frequent (n = 152); hospitalization—all (n = 1085), non-frequent (n = 854); unmanageable pain levels—all (n = 1034), non-frequent (n = 814), frequent (n = 68), very frequent (n =); clinical severity—all (n = 996), non-frequent (n = 786), frequent (n = 65), very frequent (n = 145)
  2. The Islands region consists of Madeira and Azores. The chi-squared test notes NUTS II Alentejo and Algarve regions were merged due to an expected cell count < 5
  3. BMI, body mass index; NPRS, Numeric Pain Rating Scale; NUTS II, nomenclature of territorial units for statistics II; SD, standard deviation
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Arthritis Research & Therapy

ISSN: 1478-6362

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