Table 8. Changes in sleep apnea-specific quality of life index (SAQLI), cognitive function tests and ESS among CPAP users (n = 30).
| Baseline | 3 months | 6 months | 12months | P values (repeated measures) | |
|---|---|---|---|---|---|
| Total SAQLI score | 5.0 (0.9) | 5.2 (1.0) | 5.3 (0.9) | 5.4 (0.9) | 0.106 |
| Digit span | 14.8 (3.8) | 15 (3.3) | 15.7 (3.9) | 15.4 (4.2) | 0.285 |
| Digit Symbol | 30.4 (12.2) | 34.7 (14.3) | 35.9 (14.1) | 35.7 (15.1) | <0.001 |
| Trail A | 64.7 (23.7) | 54.4 (23.2) | 54.8 (25.5) | 53 (23.9) | <0.001 |
| Trail B | 101.9 (53) | 89.9 (57.7) | 89.1 (51.6) | 85.8 (41.3) | 0.004 |
| Stroop colour | 60.2 (17.7) | 64.2 (17.9) | 66.4 (15.8) | 65 (17.6) | 0.001 |
| ESS | 9.2 (5.5) | 7.0 (4.9) | 7.2 (5.6) | 7.1 (5.6) | 0.003 |
The trail-making test estimated the minimum time required to connect a structured number sequence and the lower the score, the better the performance. The digit symbol and span tests involved the immediate memory and recall of number sequences while the stroop colour test evaluated the correct matching of colour and their corresponding characters. For the stroop colour, digit symbol and span tests, a higher score indicated superior performance.
ESS, Epworth sleepiness score.