Introduction
Subjects and methods
Adaptation process
Mean (SD) | |
---|---|
Age (years) | 14.0 (1.5) |
Body weight (kg) | 48.0 (8.9) |
Height (cm) | 162.5 (8.4) |
Cobb angle (degrees) | 35.1 (10.6) |
Angle of trunk rotationa (degrees) | 7.0 (2.9) |
Statistical analysis
Ethical considerations
Results
Questionnaire |
N
| Min | Max | Mean | 95% confidence interval | Standard deviation | |
---|---|---|---|---|---|---|---|
From | To | ||||||
BrQ first trial | 35 | 52 | 92 | 77.1 | 70.7 | 79.1 | 12.2 |
BrQ second trial | 35 | 52 | 91 | 76.5 | 71.3 | 79.6 | 12.1 |
Questionnaire | Polish version | Greek version (original) | ||
---|---|---|---|---|
Cronbach alpha | Kendall tau (r) | Cronbach alpha | Kendall tau (r) | |
BrQ | 0.94 | 0.82 | 0.82 | – |
BrQ | Mean | Standard deviation | Number (%) | |
---|---|---|---|---|
Floor effect | Ceiling effect | |||
Question 1 | 4.0 | 0.8 | 0 (0.0) | 11 (31.4) |
Question 2 | 3.5 | 1.0 | 0 (0.0) | 7 (20.0) |
Question 3 | 3.5 | 1.2 | 1 (2.9) | 6 (17.1) |
Question 4 | 3.0 | 1.2 | 4 (11.4) | 4 (11.4) |
Question 5 | 5.0 | 0.5 | 0 (0.0) | 32 (91.4) |
Question 6 | 5.0 | 0.1 | 0 (0.0) | 33 (94.3) |
Question 7 | 4.0 | 1.1 | 0 (0.0) | 9 (25.7) |
Question 8 | 4.0 | 1.2 | 2 (5.7) | 8 (22.9) |
Question 9 | 4.0 | 1.0 | 1 (2.9) | 7 (20.0) |
Question 10 | 4.0 | 0.9 | 0 (0.0) | 13 (37.1) |
Question 11 | 4.0 | 1.0 | 0 (0.0) | 12 (34.3) |
Question 12 | 3.0 | 1.2 | 6 (17.4) | 0 (0.0) |
Question 13 | 2.5 | 1.4 | 5 (14.3) | 5 (14.3) |
Question 14 | 4.0 | 1.0 | 0 (0.0) | 11 (31.4) |
Question 15 | 3.5 | 1.0 | 0 (0.0) | 6 (17.4) |
Question 16 | 3.0 | 1.0 | 2 (5.7) | 1 (2.9) |
Question 17 | 3.5 | 0.9 | 1 (2.9) | 2 (5.7) |
Question 18 | 3.5 | 1.2 | 3 (8.6) | 3 (8.6) |
Question 19 | 4.5 | 1.0 | 0 (0.0) | 16 (45.7) |
Question 20 | 5.0 | 0.8 | 0 (0.0) | 31 (88.6) |
Question 21 | 4.5 | 1.0 | 0 (0.0) | 17 (48.6) |
Question 22 | 5.0 | 0.6 | 0 (0.0) | 26 (74.3) |
Question 23 | 4.5 | 0.9 | 0 (0.0) | 16 (45.7) |
Question 24 | 4.0 | 1.0 | 0 (0.0) | 9 (25.7) |
Question 25 | 4.0 | 1.0 | 0 (0.0) | 10 (28.6) |
Question 26 | 4.5 | 0.9 | 0 (0.0) | 15 (42.9) |
Question 27 | 3.5 | 1.4 | 3 (8.6) | 11 (31.4) |
Question 28 | 5.0 | 1.1 | 2 (5.7) | 18 (51.4) |
Question 29 | 3.0 | 1.1 | 3 (8.6) | 2 (5.7) |
Question 30 | 3.5 | 1.4 | 2 (5.7) | 9 (25.7) |
Question 31 | 5.0 | 0.7 | 0 (0.0) | 24 (68.6) |
Question 32 | 4.5 | 1.2 | 2 (5.7) | 15 (42.9) |
Question 33 | 4.0 | 1.1 | 1 (2.9) | 14 (40.0) |
Question 34 | 1.0 | 1.0 | 22 (62.9) | 1 (2.9) |
BrQ Domain | Number of items | Median | Standard deviation |
---|---|---|---|
General health perception | 2 | 7.5 | 1.5 |
Physical functioning | 7 | 27.5 | 4.3 |
Emotional functioning | 5 | 17.5 | 4.2 |
Self esteem and aesthetics | 2 | 7.0 | 2.0 |
Vitality | 2 | 7.0 | 1.7 |
School activity | 3 | 14.0 | 2.2 |
Bodily pain | 6 | 25.5 | 4.4 |
Social functioning | 7 | 25.5 | 5.0 |
BrQ domain | Number of items | Item convergent validity (%) | Cronbach’s alpha | Floor effect (%) | Ceiling effect (%) |
---|---|---|---|---|---|
General health perception | 2 | 100 | 0.51 | 0 (0) | 3 (8) |
Physical functioning | 7 | 30 | 0.74 | 0 (0) | 0 (0) |
Emotional functioning | 5 | 100 | 0.82 | 0 (0) | 0 (0) |
Self esteem and aesthetics | 2 | 100 | 0.91 | 0 (0) | 1 (3) |
Vitality | 2 | 0 | 0.52 | 0 (0) | 0 (0) |
School activity | 3 | 100 | 0.71 | 0 (0) | 0 (0) |
Bodily pain | 6 | 70 | 0.82 | 0 (0) | 4 (11) |
Social functioning | 7 | 40 | 0.77 | 0 (0) | 0 (0) |