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Table 1 Descriptive statistics of the study population (n = 6,803)

From: Gender health gap pre- and post-joint arthroplasty: identifying affected patient-reported health domains

 

Hip arthroplasty patients

pb

Knee arthroplasty patients

pb

men (N = 1,627)

women (N = 2,066)

men (N = 1,430)

women (N = 1,680)

Age

mean (SD)

65.18 (10.54)

66.24 (10.59)

0.003

66.06 (9.19)

65.99 (9.26)

0.843

BMIa

 Underweight

0 (0%)

20 (0.97%)

 < 0.001

2 (0.14%)

4 (0.24%)

 < 0.001

 Normal

379 (23.29%)

786 (38.04%)

191 (13.36%)

286 (17.02%)

 Overweight

742 (45.61%)

674 (32.62%)

637 (44.55%)

547 (32.56%)

 Obese

506 (31.10%)

586 (28.36%)

600 (41.96%)

843 (50.18%)

Education

 

 No school degree

6 (0.37%)

9 (0.44%)

 < 0.001

6 (0.42%)

12 (0.71%)

 < 0.001

 Primary school degree

222 (13.64%)

270 (13.07%)

266 (18.60%)

268 (15.95%)

 High/middle school degree

831 (51.08%)

1,287 (62.29%)

766 (53.57%)

1,093 (65.06%)

 University degree

568 (34.91%)

500 (24.20%)

392 (27.41%)

307 (18.27%)

Living situation

 Alone

220 (13.52%)

624 (30.20%)

 < 0.001

172 (12.03%)

427 (25.42%)

 < 0.001

 Care facility

3 (0.18%)

8 (0.39%)

7 (0.49%)

12 (0.71%)

 With a partner/family/friends

1,392 (85.56%)

1,423 (68.88%)

1,247 (87.20%)

1,225 (72.92%)

 Other

12 (0.74%)

11 (0.53%)

4 (0.28%)

16 (0.95%)

Job

 Working

579 (35.59%)

621 (30.06%)

 < 0.001

475 (33.22%)

447 (26.61%)

 < 0.001

 Voluntarily not working including retirement

866 (53.23%)

1230 (59.54%)

772 (53.99%)

1,018 (60.60%)

 Looking for work

18 (1.11%)

17 (0.82%)

15 (1.05%)

19 (1.13%)

 Unable to work

164 (10.08%)

198 (9.58%)

168 (11.75%)

196 (11.67%)

Admission PROc mean (SD)

 EQ-5D-5L

0.644 (0.239)

0.562 (0.269)

 < 0.001

0.665 (0.230)

0.589 (0.262)

 < 0.001

 EQ-VAS

59.14 (19.90)

54.96 (19.67)

 < 0.001

61.09 (19.29)

55.91 (18.92)

 < 0.001

 HOOS-PS/ KOOS-PS

44.29 (15.50)

50.43 (16.00)

 < 0.001

40.62 (12.67)

45.13 (12.35)

 < 0.001

 PROMIS-D-SF

47.96 (7.78)

51.20 (8.40)

 < 0.001

47.42 (7.69)

51.04 (8.39)

 < 0.001

 PROMIS-F-SF

46.92 (9.20)

50.97 (10.00)

 < 0.001

46.28 (9.51)

49.98 (9.80)

 < 0.001

 Pain in joint

6.09 (2.19)

6.72 (2.05)

 < 0.001

6.49 (2.04)

7.04 (1.93)

 < 0.001

  1. aBMI body mass index
  2. bfor continuous variables a two-sided t-test was performed, for and categorical variables a Chi-square test was performed and for the PRO-scores at admission, a Mann–Whitney U test
  3. cPRO Patient-reported Outcome. The score ranges are: -0.661 to 1.0 for the EQ-5D-5L, 0–100 for the EQ-VAS, HOOS-PS and KOOS-PS, 33.7–75.8 for the PROMIS-F-SF, 41–79.4 for the PROMIS-D-SF and 0–10 for pain. The EQ-5D-5L is reported with three digits after the decimal point due to the small score range