Table 3 |
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|
Comparison of the components of PSQI in cases and controls |
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|
PSQI components score |
Cases n = 314 |
Controls n = 102 |
P value |
|
|
|||
|
Subjective sleep quality |
1.01 ± 0.77 |
0.89 ± 0.79 |
0.127 |
|
Sleep latency |
0.98 ± 0.89 |
0.69 ± 0.88 |
0.001 |
|
Sleep duration |
0.68 ± 0.79 |
1.29 ± 0.86 |
0.000 |
|
Habitual sleep efficiency |
0.95 ± 1.03 |
0.25 ± 0.64 |
0.000 |
|
Sleep disorders |
1.21 ± 0.69 |
0.74 ± 0.63 |
0.000 |
|
Use of sleep medications |
0.10 ± 0.46 |
0.01 ± 0.09 |
0.055 |
|
Daytime dysfunction |
1.69 ± 0.95 |
1.63 ± 1.00 |
0.635 |
|
Total |
6.62 ± 3.62 |
5.50 ± 2.51 |
0.020 |
|
|
|||
|
P values were obtained with the Mann-Whitney U test. PSQI, Pittsburgh Sleep Quality Index. |
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|
Li et al. Arthritis Research & Therapy 2012 14:R215 doi:10.1186/ar4054 |
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