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Table 1 Study demographics

From: Self-reported adult footwear and the risks of lower limb osteoarthritis: the GOAL case control study

 

GOAL interview footwear questions

Responders: Additional footwear questionnaire

Non-responders: Additional footwear questionnaire

Control

Knee OA

Hip OA

Control

Knee OA

Hip OA

Control

Knee OA

Hip OA

N=

1122

1007

1042

597

471

483

525

536

559

%Female

49%

48%

50%

47%

48%

49%

47%

49%

53%

Age

63 (9)

68 (7)**

68 (7)**

64 (8)

67 (7)**

67 (7)**

65 (9)

69 (7)**

68 (7)**

BMI

27 (5)

31 (5)**

29 (5)**

28 (5)

31 (6)**

29 (5)**

27 (5)

31 (5)**

29 (5)**

BMI in 20’s

22.5 (5.5)

24 (4)**

23 (4)**

23 (6)

24 (3)**

23 (4)**

22 (3)

24 (4)**

24 (4)**

Knee injury

17%

32%**

17%

18%

34%**

19%

16%

30%**

14%

Hip injury

2%

3%

7%**

2%

3%

10%**

2%

3%

5%*

  1. The demographics of the responders to the footwear questions from the additional GOAL questionnaire are shown. They were similar to the demographics of the main GOAL study (published elsewhere[19]). Mean (s.d.) or percentage prevalence of characteristics within study groups. **-p < 0.01, *-p < 0.05 vs controls. Statistical significance is highlighted in bold.