Table 2 Estimated number of hospitalized patients and deaths due to norovirus gastroenteritis among adults aged ≥60 years in Japan
From: Nationwide epidemiologic study of norovirus-related hospitalization among Japanese older adults
Stratum (No. of hospital beds) | Administrative year 2012 | Administrative year 2013 | Administrative year 2014 | |||
|---|---|---|---|---|---|---|
Hospitalized patients | Deaths | Hospitalized patients | Deaths | Hospitalized patients | Deaths | |
University hospital | 367 | 5 | 284 | 9 | 181 | 4 |
≥500 | 2552 | 147 | 1853 | 138 | 1246 | 123 |
400–499 | 2458 | 57 | 1772 | 54 | 1347 | 54 |
300–399 | 5608 | 147 | 4072 | 135 | 3092 | 172 |
200–299 | 4932 | 42 | 3554 | 36 | 2464 | 56 |
100–199 | 10,507 | 207 | 6429 | 209 | 4519 | 151 |
< 99 | 5387 | 41 | 3639 | 0 | 2858 | 22 |
Total estimated number | 31,800 | 650 | 21,600 | 580 | 15,700 | 580 |
(95% confidence interval) | (25,700–37,900) | (430–860) | (17,700–25,500) | (370–790) | (12,900–18,500) | (380–790) |