Observational Study
Copyright ©The Author(s) 2025.
World J Psychiatry. Jan 19, 2025; 15(1): 97945
Published online Jan 19, 2025. doi: 10.5498/wjp.v15.i1.97945
Table 2 Pittsburgh sleep quality index and its scores in each dimension
Group
PSQI
Subjective sleep quality
Sleep time
Total sleep time
Sleep efficiency
Nocturnal sleep disturbance
Daytime dysfunction
MCI group (n = 120)6 (6, 6)2 (2, 2)0 (0, 1)2 (2, 3)0 (0, 1)0 (0, 1)0 (0, 1)
Control group (n = 50)9 (8, 10)1 (1, 1)2 (2, 2)1 (1, 1)2 (1, 2)2 (1, 2)2 (1.75, 2)
Z-10.518-11.592-10.368-9.924-9.035-10.661-10.088
P value< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001
PSQI: Pittsburgh sleep quality index.