Clinical Study
Validation of the CPAP Habit Index-5: A Tool to Understand Adherence to CPAP Treatment in Patients with Obstructive Sleep Apnea
Table 3
Item analysis of the CPAP Habit Index-5 after 6 months of CPAP use (
)
1.
| | Items | Item statistics | Item score distribution | | Mean (SD) | CV | ITC |
1 |
2 |
3 |
4 |
5 |
| | (1) Using the CPAP nightly is part of my routines a normal week | 2.02 (1.22) | 0.603 | 0.881 | 56 (48.3) | 25 (21.6) | 17 (14.7) | 13 (11.2) | 5 (4.3) | | (2) A special reason is needed if I'm not going to use the CPAP during a normal night | 2.16 (1.32) | 0.614 | 0.580 | 49 (42.2) | 34 (29.3) | 9 (7.8) | 14 (12.1) | 10 (8.6) | | (3) I have used the CPAP nightly for a long time | 2.28 (1.28) | 0.561 | 0.855 | 46 (39.7) | 23 (19.8) | 21 (18.1) | 21 (18.1) | 5 (4.3) | | (4) It feels weird not to use the CPAP during a normal night | 2.50 (1.33) | 0.534 | 0.716 | 37 (31.9) | 25 (21.6) | 23 (19.8) | 21 (18.1) | 10 (8.6) | | (5) I use the CPAP more or less automatically during a normal night | 2.09 (1.25) | 0.597 | 0.913 | 53 (45.7) | 25 (21.6) | 18 (15.5) | 14 (12.1) | 6 (5.2) |
| | Total score | 11.04 (5.53) | 0.501 | | | | | | |
|
|
CV: coefficient of variation; ITC: item total correlations.
1One participant excluded according to missing data in item no 3.
|
