Table 3: Differences between study groups in Pittsburgh sleep quality index score at baseline and after therapy.

Baseline (n)P25 weeks (n)P
IGPGPre-TIGPG1 -PT
PSQINPMPSPNPMPSPNPMPSPNPMPSP

PSQ0123121326.0640103351818.043*
SL26352732.9480222111228.064
SD112302534.0590192401031.042*
HSE1152701031.2550202301328.065
SDI0172631424.1910271641027.040*
DD034903110.592335502912.065

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-therapeutic; 1 PT, post-therapy (after 25 weeks of treatment); PSQ, Pittsburgh subjective quality; SL, sleep latency; SD, sleep duration; HSE, habitual sleep efficiency; SDI, sleep disturbance; DD, daily dysfunction; NP, no problems; MP, moderate problems; SP, severe problems. *P = .05 (95% CI).