Morbidity and mortality reduction associated with polysomnography testing in idiopathic pulmonary fibrosis: a population-based cohort study

Table 3 Hazard ratios (HR) and confidence intervals (CI) for outcomes in propensity-score matched cohort, stratifying by respiratory-related hospitalization

Respiratory-related hospitalization status	Outcomes	Exposure status	Number of events (%)	HR (95% CI)	p-value
No respiratory-related hospitalization in year prior to index date	Respiratory-related hospitalization	Exposed	9 (5.9)	0.47 (0.21–1.06)	0.07
	Respiratory-related hospitalization	Controls	18 (11.8)	1.00
	All-cause mortality	Exposed	14 (9.2)	0.34 (0.23–0.83)	0.01
	All-cause mortality	Controls	30 (19.6)	1.00
≥ 1 respiratory-related hospitalization in year prior to index date	Respiratory-related hospitalization	Exposed	^*	0.38 (0.15–0.99)	0.05
	Respiratory-related hospitalization	Controls	10 (34.5)	1.00
	All-cause mortality	Exposed	^*	0.42 (0.17–1.05)	0.06
	All-cause mortality	Controls	10 (34.5)	1.00

^*Data has been suppressed, according to ICES guidelines, because of small sample size

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