. 2017 Sep 11;12(9):e0184300. doi: 10.1371/journal.pone.0184300

Table 3. Effect of depression and anxiety on hospital admission rate.

	No. of Patients	Adjusted Incidence Rate Ratio^* (95% CI)
	No. of Patients	Hospitalization
No depression (HADS-D≤7)	83	1 (reference)
Depression (HADS-D≥8)	29	1.07 (0.45–2.50)
p value for trend^†		0.872
No anxiety (HADS-A≤7)	88	1 (reference)
Anxiety (HADS-A≥8)	24	1.55 (0.66–3.64)
p value for trend^†		0.312

CI = Confidence interval; HADS = Hospital Anxiety and Depression Scale; HADS-A = HADS-Anxiety; HADS-D = HADS-Depression

*Adjusted for GAP score (age, sex, pulmonary function; forced vital capacity [FVC], diffusing capacity of the lungs for carbon monoxide [DLCO])

^† p value of testing for linear trend