Figure and Table | Post-Coronavirus Disease 2019 Syndrome in Japan: An Observational Study Using a Medical Database

Table 1. Number of Eligible Patients with COVID-19 by Age, Divided into Observation Periods to Examine Acute and Post-COVID-19 Incidence.

From: Post-Coronavirus Disease 2019 Syndrome in Japan: An Observational Study Using a Medical Database

	Age	0-15	16-19	20’s	30’s	40’s	50’s	60’s	70’s	80-85	Total
Observation periods	Period 1; January 1, 2020-June 30, 2021	635	627	2,829	2,023	2,433	2,695	2,185	2,453	1,248	17,128 (14.0%)
	Period 2; July 1, 2021-December 31, 2021	1,504	1,176	4,008	2,868	3,440	2,791	1,118	669	299	17,873 (14.6%)
	Period 3; January 1, 2022-June 30, 2022	18,930	5,960	14,702	13,411	13,517	9,164	5,133	4,141	2,086	87,044 (71.3%)
	Total	21,069	7,763	21,539	18,302	19,390	14,650	8,436	7,263	3,633	122,045 (100.0%)

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Table 2. Number of Eligible Patients with COVID-19 by Region, Divided into Observation Periods to Examine Acute and Post-COVID-19 Incidence.

From: Post-Coronavirus Disease 2019 Syndrome in Japan: An Observational Study Using a Medical Database

	Region	Hokkaido, Tohoku	Kanto	Chubu	Kansai	Chugoku, Shikoku	Kyushu, Okinawa	Total
Observation periods	Period 1; January 1, 2020-June 30, 2021	691	7,870	572	5,713	114	2,168	17,128 (14.0%)
	Period 2; July 1, 2021-December 31, 2021	467	8,548	823	4,851	165	3,019	17,873 (14.6%)
	Period 3; January 1, 2022-June 30, 2022	3,388	32,186	3,721	32,290	987	14,472	87,044 (71.3%)
	Total	4,546	48,604	5,116	42,854	1,266	19,659	122,045
	Total	(3.7%)	(39.8%)	(4.2%)	(35.1%)	(1.0%)	(16.1%)	(100.0%)

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Table 3. The Number of Eligible Outpatients/Inpatients with COVID-19, Divided into Observation Periods to Examine Acute and Post-COVID-19 Incidence.

From: Post-Coronavirus Disease 2019 Syndrome in Japan: An Observational Study Using a Medical Database

	Out/Inpatients	Outpatients	Inpatients	Total
Observation periods	Period 1; January 1, 2020-June 30, 2021	9,609	7,519	17,128 (14.0%)
	Period 2; July 1, 2021-December 31, 2021	13,401	4,472	17,873 (14.6%)
	Period 3; January 1, 2022-June 30, 2022	82,220	4,824	87,044 (71.3%)
	Total	105,230	16,815	122,045
	Total	(86.2%)	(13.8%)	(100.0%)

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Table 4. Number of Eligible Patients with COVID-19 by Age (>50 Years), Divided into Observation Periods for Examination of Nursing Care Requirements.

From: Post-Coronavirus Disease 2019 Syndrome in Japan: An Observational Study Using a Medical Database

	Ages over than 50’s	50’s	60’s	70’s	80-85	Total
Observation periods	Period 1; January 1, 2020-June 30, 2021	1	10	67	74	154 (28.8%)
	Period 2; July 1, 2021-December 31, 2021	0	5	21	22	48 (9.0%)
	Period 3; January 1, 2022-June 30, 2022	10	24	131	166	332 (62.2%)
	Total	11	39	219	262	534 (100%)

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