Impact of comprehensive psychological cognitive nursing on the quality of life of patients with chronic pain and depression

Table 1 Comparison of general information of the patients

	Number of cases	Gender		Age (years) (mean ± SD)	Disease course (months) (mean ± SD)	Patient Health Questionnaire-9
		Male	Female
Control group	85	30	55	61.96 ± 12.86	37.46 ± 5.36	12.14 ± 3.88
Observation group	86	35	51	59.53 ± 13.27	39.04 ± 5.90	11.97 ± 4.03
χ2/t		0.530		1.209	0.185	0.118
P value		0.467		0.229	0.854	0.907