Table 2.

Comparative analysis of the rate of IPF admissions in analysis 1

Month	Year	Prevalence	Number of admissions	Admission rate (%)	Rate ratio (95% CI)	P value
Jan	2017–2019	17,681	762	4.31	reference
	2020	20,048	948	4.73	1.10 (1.00–1.22)	0.051
	2021	21,926	704	3.21	0.74 (0.66–0.82)	< 0.001
Feb	2017–2019	17,681	608	3.46	reference
	2020	20,048	723	3.61	1.05 (0.94–1.17)	0.379
	2021	21,926	612	2.79	0.81 (0.72–0.90)	< 0.001
Mar	2017–2019	17,681	687	3.90	reference
	2020	20,048	692	3.45	0.88 (0.79–0.98)	0.025
	2021	21,926	738	3.37	0.86 (0.78–0.96)	0.006
Apr	2017–2019	17,681	711	4.03	reference
	2020	20,048	623	3.11	0.77 (0.69–0.85)	< 0.001
	2021	21,926	743	3.39	0.84 (0.75–0.93)	< 0.001
May	2017–2019	17,681	725	4.10	reference
	2020	20,048	680	3.39	0.82 (0.74–0.91)	< 0.001
	2021	21,926	741	3.38	0.82 (0.74–0.91)	< 0.001
Jun	2017–2019	17,681	661	3.74	reference
	2020	20,048	694	3.46	0.92 (0.83–1.03)	0.149
	2021	21,926	713	3.25	0.87 (0.78–0.96)	0.009
July	2017–2019	17,681	713	4.03	reference
	2020	20,048	712	3.55	0.88 (0.79–0.97)	0.014
	2021	21,926	675	3.08	0.76 (0.68–0.84)	< 0.001
Aug	2017–2019	17,681	681	3.84	reference
	2020	20,048	593	2.96	0.76 (0.68–0.85)	< 0.001
	2021	21,926	674	3.07	0.79 (0.71–0.88)	< 0.001
Sep	2017–2019	17,681	602	3.40	reference
	2020	20,048	658	3.28	0.96 (0.86–1.08)	0.508
	2021	21,926	660	3.01	0.88 (0.79–0.99)	0.026
Oct	2017–2019	17,681	653	3.69	reference
	2020	20,048	625	3.12	0.84 (0.75–0.94)	0.002
	2021	21,926	644	2.94	0.79 (0.71–0.88)	< 0.001
Nov	2017–2019	17,681	665	3.76	reference
	2020	20,048	655	3.27	0.86 (0.77–0.96)	0.009
	2021	21,926	696	3.17	0.84 (0.75–0.93)	0.001
Dec	2017–2019	17,681	696	3.93	reference
	2020	20,048	629	3.14	0.79 (0.71–0.88)	< 0.001
	2021	21,926	729	3.32	0.84 (0.76–0.93)	0.001