Relationship between anxiety and depression, dyspnea severity, and pulmonary function in connective tissue disease-associated interstitial lung disease

Table 5 Psychological state indicators

Indicators	At enrollment	Week 4	Week 12	Week 24	F value	P value
GAD-7 (points)	7.14 ± 4.03	6.02 ± 3.58	5.23 ± 3.22	4.89 ± 3.11	12.753	< 0.001
PHQ-9 (points)	8.76 ± 4.85	6.98 ± 4.41	5.84 ± 3.93	5.12 ± 3.67	14.189	< 0.001
GAD-7 ≥ 10 (n)	38	28	22	19	8.429	0.038
PHQ-9 ≥ 10 (n)	42	31	25	21	7.165	0.047

P < 0.05 indicated significant difference. GAD-7: Generalized anxiety disorder-7; PHQ-9: Patient health questionnaire-9.