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Table 9 Construct and concurrent validity of WHOQOL-DIS for people with physical disabilities

From: The World Health Organization Quality of Life instrument for people with intellectual and physical disabilities (WHOQOL-Dis): evidence of validity of the Brazilian version

Factor/domain Are you currently ill or in poor health? Do you have a disability [impairment or limitation]? Depression (BDI-II) (stratified by quantils) Satisfaction with life (SWLS) (stratified by quantils)
Yes (n = 113) No (n = 49) df = 160 Yes (n = 155) No (n = 7) df = 160 ≤ 11 (n = 81) ≥ 12 (n = 81) df = 160 ≤ 23 (n = 80) ≥ 24 (n = 82) df = 160
Mean (SD) Mean (SD) t d Mean (SD) Mean (SD) t d Mean (SD) Mean (SD) t d Mean (SD) Mean (SD) t d
Physical(a) 42,19 (17,44) 70,63 (14,49) −10,01** 0,62 50,41 (21,07) 59,18 (22,1) −1,07 0,08 61,29 (17,34) 40,3 (19,34) 7,27** 0,50 45,22 (19,82) 56,23 (21,04) −3,42** 0,26
Psychological(a) 60,67 (18,81) 71,51 (13,8) −4,0** 0,30 63,71 (16,79) 69,05 (10,45) −0,83 0,07 73,46 (11,89) 54,42 (15,64) 8,91** 0,58 57,19 (17,67) 70,53 (12,37) −5,56** 0,40
Social(a) 63,42 (18,81) 73,64 (20,93) −3,07** 0,24 66,4 (19,89) 69,05 (23,43) −0,34 0,03 73,77 (17,83) 59,26 (19,45) 4,95** 0,36 58,75 (20,41) 74,09 (16,41) −5,28** 0,39
Environment(a) 53,43 (15,88) 59,06 (13,86) −2,15* 0,17 54,68 (15,39) 65,18 (14,92) −1,77* 0,14 63,58 (11,6) 46,68 (14,25) 8,28** 0,55 49,73 (15,82) 60,40 (13,23) −4,66** 0,35
Overall(a) 48,56 (20,37) 72,7 (15,02) −8,39** 0,55 55,89 (21,9) 55,36 (23,78) 0,06 0,00 63,73 (19,12) 47,99 (21,78) 4,89** 0,36 47,97 (21,55) 63,57 (19,46) −4,84** 0,36
Factor1(b) 62,54 (22,8) 67,35 (19,23) −1,29 0,10 63,23 (21,69) 80,95 (19,07) −2,12* 0,17 72,33 (19,27) 55,66 (21,16) 5,24** 0,38 61,25 (20,81) 66,67 (22,6) −1,68* −0,13
Factor2(b) 68,88 (25,44) 77,04 (18,91) −2,26* 0,18 70,5 (24,01) 88,09 (13,49) −1,91* 0,15 79,01 (17,44) 63,68 (29,95) 4,3** 0,32 65,83 (25,87) 76,73 (20,57) −2,96* 0,23
Factor3(b) 65,41 (19,17) 70,92 (14,87) −1,98* 0,15 66,34 (18,01) 83,33 (12,5) −2,46* 0,19 74,18 (14,66) 59,98 (18,53) 5,41** 0,39 61,97 (19,66) 72,05 (14,98) −3,66** 0,28
Overall(b) 10,84 (7,04) 17,73 (6,3) −5,9** 0,42 12,74 (7,47) 16,96 (7,83) −1,46 0,11 16,13 (6,08) 9,72 (7,46) 5,99** 0,43 10,47 (7,02) 15,32 (7,23) −4,33** 0,32
DISQOL Module 65,56 (15,96) 71,56 (12,28) −2,6* 0,20 66,63 (14,92) 83,93 (10,94) −3,03** 0,23 74,93 (12,18) 59,83 (14,09) 7,29** 0,50 62,76 (15,36) 71,87 (13,6) −4,0** 0,30
Local Module 44,3 (20,02) 58,93 (18,09) −4,39** 0,33 47,94 (20,3) 66,07 (19,38) −2,31* 0,18 55,48 (18,76) 41,98 (20,11) 4,42** 0,33 46,64 (18,92) 50,76 (21,92) −1,28 0,10
  1. (a)WHOQOL-Bref. (b)DISQOL Module: factors congruent to the ones found in the cross-cultural project (global sample).
  2. Levels of significance: *p < 0.05; **p ≤ 0.001. In bold: Mann–Whitney statistics for non-normal distributions. df = degrees of freedom; d = effect size.