Table 4.

RSV incidence in the JMDC population per 1000 by age group and setting of care for 2017 to 2018

Age (months)		0–2	3–5	6–11	12–23	0–5	0–11	0–23
All†	No. of RSV infections	1,845	3,052	4,489	3,160	4,897	9,386	12 546
	Total PY	29 121	28 099	45 016	44 947	57 220	102 236	147 183
	Incidence per 1,000 PY (95% CI)	63.4 (60.5–66.3)	109.0 (104.8–112.5)	100.0 (96.8–102.6)	70.0 (67.9–72.8)	85.6 (83.2–88.0)	91.8 (90.0–93.7)	85.2 (83.8–86.7)
Outpatients‡	No. of RSV infections	1,543	2,941	4,376	3,010	4,484	8,860	11 870
	Total PY	29 143	28 186	45 211	45 265	57 329	102 540	147 805
	Incidence per 1,000 PY (95% CI)	52.9 (50.3–55.6)	104.3 (100.6–108.1)	96.8 (93.9–99.7)	66.5 (64.1–68.9)	78.2 (75.9–80.5)	86.4 (84.6–88.2)	80.3 (78.9–81.8)
Inpatients§	No. of RSV infections	1,087	953	850	693	2,040	2,890	3,583
	Total PY	29 146	28 446	47 049	49 533	57 592	104 641	154 174
	Incidence per 1,000 PY (95% CI)	37.3 (35.1–39.5)	33.5 (31.4–35.6)	18.1 (16.9–19.3)	14.0 (13.0–15.0)	35.4 (33.9–37.0)	27.6 (26.6–28.6)	23.2 (22.5–24.0)

^†All: patients with outpatient visit only or hospitalization.

^‡Outpatient: patients with any outpatient visits – i.e. outpatient visits only and outpatients who were subsequently hospitalized.

^§Inpatients: patients with any hospitalization – i.e. hospitalization only and outpatients after hospitalization.

CI: confidence interval; JMDC: Japan Medical Data Center; PY: person‐years; RSV: respiratory syncytial virus.