Table 4.
Differences between study groups in Pittsburgh sleep quality index at 6 months and 1 year after treatment.
| 6 months (n = number of patients) | P | 1 year (n = number of patients) | P | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IG | PG | 2 (a)-PT | IG | PG | 3 (a)-PT | |||||||||
| PSQI | NP | MP | SP | NP | MP | SP | NP | MP | SP | NP | MP | SP | ||
| PSQ | 5 | 13 | 25 | 7 | 18 | 16 | .093 | 4 | 11 | 28 | 6 | 19 | 16 | .054 |
| SL | 4 | 18 | 21 | 2 | 14 | 25 | .105 | 2 | 18 | 23 | 3 | 14 | 24 | .132 |
| SD | 2 | 16 | 25 | 3 | 7 | 31 | .039* | 1 | 17 | 25 | 2 | 6 | 33 | .040* |
| HSE | 4 | 19 | 20 | 0 | 14 | 27 | .047* | 2 | 20 | 21 | 0 | 13 | 28 | .044* |
| SDI | 0 | 21 | 22 | 4 | 11 | 26 | .045* | 0 | 19 | 24 | 2 | 13 | 26 | .088 |
| DD | 6 | 21 | 16 | 0 | 24 | 17 | .240 | 3 | 18 | 22 | 1 | 28 | 12 | .039* |
Values are shown as n = number of patients with no problems, moderate problems, severe problems. PSQI, Pittsburgh sleep quality index; IG, intervention group; PG, placebo group; Pre-T, pre-therapy; 2 (a) PT, post-therapy at 6 months after end of treatment; 3 (a) PT, post-therapy at 1 year after end of treatment; PSQ, Pittsburgh subjective quality; SL, sleep latency; SD, sleep duration; HSE, habitual sleep efficiency; SDI, sleep disturbance; DD, daily dysfunction; NP, does not present problems; MP, moderate problems; SP, severe problems. *P = .05 (95% CI).