Correlation between positive degree and psychological distress in patients with interstitial lung disease

Table 3 Single factor analysis of psychological distress in patients with interstitial lung disease, mean ± SD

Variable	n	K10 score (points)	t/F	P value
Gender			0.289	0.773
Male	177	32.53 ± 5.58
Female	193	32.70 ± 5.63
Age (years)	370	32.62 ± 5.60	-
Marital status			1.179	0.239
Have a spouse	226	32.35 ± 5.75
No spouse	144	33.05 ± 5.35
Educational level			47.702	< 0.001
Junior high school and below	127	29.60 ± 4.93
Secondary/high school	145	32.88 ± 5.48
College degree or above	98	36.14 ± 4.30
Family monthly income			0.637	0.529
< 3000	153	32.27 ± 5.33
3000-5000	123	33.04 ± 5.62
> 5000	94	32.63 ± 6.01
Smoking			0.142	0.887
Yes	66	32.53 ± 5.60
No	304	32.64 ± 5.60
Diseases
IPF	93	32.06 ± 5.59	1.104	0.270
Non-IPF	277	32.81 ± 5.60
Taking hormones			1.839	0.067
Yes	214	32.16 ± 5.30
No	156	33.24 ± 5.95
Immunosuppressants			0.025	0.980
Yes	216	32.63 ± 5.69
No	154	32.61 ± 5.48
Difficulty breathing			57.230	< 0.001
Level 0	99	30.70 ± 4.39
Level 1	125	30.56 ± 4.45
Level 2	77	32.06 ± 5.12
Level 3	54	39.26 ± 3.45
Level 4	15	41.04 ± 2.77
PSSS score (points)			7.878	< 0.001
> 60	175	30.38 ± 4.33
≤ 60	195	34.63 ± 5.85

IPF: Idiopathic pulmonary fibrosis; PSSS: Perceived Social Support Scale.