Table 2.

Comparison of observational indicators between the two groups

	Subthreshold depression (n = 95)	Control (n = 100)	Statistic	P value
Pain score (score, mean ± SD)	3.98 ± 2.43	1.34 ± 0.2	35.918	0.000
PSQI (score, mean ± SD)	11.0 ± 3.1	9.8 ± 1.8	1.841	0.070
Piper Fatigue Scale score (score, mean ± SD)	7.2 ± 1.6	4.5 ± 1.4	4.410	0.000
Hemoglobin (g/L, mean ± SD)	60.24 ± 12.45	71.19 ± 15.34	1.011	0.000
Albumin (g/L, mean ± SD)	33.98 ± 15.66	34.45 ± 19.46	1.534	0.128
CRP (mg/L, mean ± SD)	8.13 ± 1.55	4.24 ± 1.42	2.832	0.005

PSQI: Pittsburgh Sleep Quality Index; CRP: C-reactive protein.