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Table 1 Demographic characteristics of the participants and properties of the distributions of WHODAS 2.0 summary scores by country

From: Why sample selection matters in exploratory factor analysis: implications for the 12-item World Health Organization Disability Assessment Schedule 2.0

 

China

India

Mexico

Russian Federation

South Africa

Ghana

Sample size (N)a

12,226

6,095

2,041

3,305

3,461

4,123

Demographic characteristics

 Female sex

53%

49%

60%

64%

58%

47%

 Age – mean (standard deviation)

63(9)

62(9)

68(9)

64(10)

63(10)

64(11)

WHODAS 2.0 Score Distributionb

 25th/50th/75th percentiles

0/2/5

5/10/16

2/5/12

3/6/12

0/5/13

2/8/15

 Mean scores (standard deviation)

3.52(5.24)

11.43(8.61)

7.79(8.18)

8.28(7.74)

8.01(8.76)

9.46(8.56)

 Skewness (standard error)

2.82(.02)

0.97(.03)

1.48(.05)

1.45(.04)

1.23(.04)

1.07(.04)

 Percentage of participants with zero scores

32%

6%

16%

7%

26%

15%

  1. Note. aOnly adults aged 50+ with no missing value in WHODAS items responses were included
  2. b12-item WHODAS 2.0 summary scores (calculated as the sum of item scores) can range from 0 to 48, with higher scores indicating greater activity limitations and participation restrictions