BMC Pulmonary Medicine

Table 1 Prevalence and incidence of idiopathic pulmonary fibrosis from 2011 to 2019

From: Epidemiology and comorbidities in idiopathic pulmonary fibrosis: a nationwide cohort study

	2011	2012	2013	2014	2015	2016	2017	2018	2019
Prevalence study
Patients, n	3804	4527	5270	6066	6704	7927	8763	10,104	12,031
Sex
Male	2568	3083	3629	4160	4627	5524	6208	7251	8787
Female	1236	1444	1641	1906	2077	2403	2555	2853	3244
Age, years
≤ 29	13	11	14	17	15	17	14	15	17
30–39	22	28	33	29	30	31	24	25	23
40–49	88	114	111	115	122	132	125	126	118
50–59	516	540	645	719	667	694	723	786	766
60–69	1229	1439	1593	1765	1934	2375	2586	2912	3473
70–79	1509	1853	2203	2546	2856	3330	3693	4288	5094
≥ 80	427	542	671	875	1080	1348	1598	1952	2540
Prevalence,/100,000 people
Total	7.50	8.89	10.30	11.82	13.01	15.33	16.92	19.50	23.20
Men	10.11	12.09	14.18	16.21	17.96	21.39	24.01	28.03	33.97
Women	4.88	5.68	6.42	7.43	8.06	9.29	9.86	10.99	12.48
Incidence study
Patients, n		1812	2001	2094	2261	2843	2743	3255	4099
Sex
Male		1258	1384	1417	1548	2013	1977	2378	3054
Female		554	617	677	713	830	769	877	1045
Age, years
≤ 29		7	5	5	6	4	3	3	5
30–39		10	16	10	13	10	4	10	8
40–49		51	37	45	44	42	39	42	40
50–59		193	250	243	211	237	247	252	240
60–69		564	563	581	604	857	776	926	1146
70–79		754	837	869	979	1170	1133	1359	1724
≥ 80		233	293	341	404	523	544	663	936
Incidence/100,000 person-years
Total		3.56	3.91	4.08	4.39	5.50	5.30	6.28	7.91
Men		4.93	5.41	5.52	6.01	7.79	7.65	9.19	11.81
Women		2.18	2.41	2.64	2.77	3.21	2.97	3.38	4.02

Prevalence and incidence rates were calculated based on the annual population census determined by the Korean Statistical Information Service
Poisson regression analysis of linear trend showed that the annual incidences of idiopathic pulmonary fibrosis were higher in the total Korean population, as well as in men and women (p < 0.001 each)

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