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刚刚读到报道Coronavirus: 20-29 age group now leading B.C. in confirmed caseshttps://globalnews.ca/news/7260136/coronavirus-20-29-age-group-b-c/的加拿大BC省5,6,7三个月份确诊的COVID19案例不同年龄的统计数字，略作一些分析，结果如下：
1）确诊案例主要年龄段集中在20-69岁，5,6,7三个月，占总确诊案例的75%左右；
2）确诊案例的住院率和死亡率在10-79岁，在5,6,7三个月都是随年龄的增大而增高。令人欣慰的是40岁以下的确诊案例都治愈了。
3）20-29岁年龄段的确诊案例占总确诊案例数的比率在逐月增加，这也许与逐渐re-open，这个年龄段比较活跃而不太严格注意physical distance 和过多的聚会有关吧。
4）确诊案例数逐月增长。
| 6-May-20 | % of cases | % of | % of | ||||
| hospitalized | death | ||||||
| Under 10: 20 cases. Hospitalized: 2. Deaths: 0 | 0.89 | 10.00 | 0 | ||||
| 10-19: 38 cases. Hospitalized: 1. Deaths: 0 | 1.69 | 2.63 | 0 | ||||
| 20-29: 214 cases. Hospitalized: 9. Deaths: 0 | 9.51 | 4.21 | 0 | ||||
| 30-39: 390 cases. Hospitalized: 30. Deaths: 0 | 17.33 | 7.69 | 0 | ||||
| 40-49: 342 cases. Hospitalized: 42. Deaths: 2 | 15.19 | 12.28 | 0.58 | ||||
| 50-59: 443 cases. Hospitalized: 66. Deaths: 2 | 19.68 | 14.90 | 0.45 | ||||
| 60-69: 301 cases. Hospitalized: 93. Deaths: 13 | 13.37 | 30.90 | 4.32 | ||||
| 70-79: 213 cases. Hospitalized: 113. Deaths: 21 | 9.46 | 53.05 | 9.86 | ||||
| 80-89: 185 cases. Hospitalized: 76. Deaths: 52 | 8.22 | 41.08 | 28.11 | ||||
| 90- : 105 cases. Hospitalized: 30. Deaths: 34 | 4.66 | 28.57 | 32.38 | ||||
| Total: 2,251. Hospitalized: 462. Deaths: 124 | 100 | 20.52 | 5.51 | ||||
| 6-Jun-20 | % of cases | % of | % of | ||||
| hospitalized | death | ||||||
| Under 10: 32 cases. Hospitalized: 2. Deaths: 0 | 1.22 | 6.25 | 0 | ||||
| 10-19: 53 cases. Hospitalized: 1. Deaths: 0 | 2.01 | 1.89 | 0 | ||||
| 20-29: 281 cases. Hospitalized: 13. Deaths: 0 | 10.68 | 4.63 | 0 | ||||
| 30-39: 455 cases. Hospitalized: 33. Deaths: 0 | 17.29 | 7.25 | 0 | ||||
| 40-49: 399 cases. Hospitalized: 47. Deaths: 2 | 15.17 | 11.78 | 0.50 | ||||
| 50-59: 502 cases. Hospitalized: 72. Deaths: 4 | 19.08 | 14.34 | 0.80 | ||||
| 60-69: 326 cases. Hospitalized: 99. Deaths: 15 | 12.39 | 30.37 | 4.60 | ||||
| 70-79: 242 cases. Hospitalized: 118. Deaths: 30 | 9.20 | 48.76 | 12.40 | ||||
| 80-89: 213 cases. Hospitalized: 80. Deaths: 72 | 8.10 | 37.56 | 33.80 | ||||
| 90- : 128 cases. Hospitalized: 31. Deaths: 44 | 4.87 | 24.22 | 34.38 | ||||
| Total: 2,631. Hospitalized: 496. Deaths: 167 | 100 | 18.85 | 6.35 | ||||
| 6-Jul-20 | % of cases | % of | % of | ||||
| hospitalized | death | ||||||
| Under 10: 49 cases. Hospitalized: 2. Deaths: 0 | 1.65 | 4.08 | 0 | ||||
| 10-19: 78 cases. Hospitalized: 1. Deaths: 0 | 2.63 | 1.28 | 0 | ||||
| 20-29: 355 cases. Hospitalized: 14. Deaths: 0 | 11.95 | 3.94 | 0 | ||||
| 30-39: 514 cases. Hospitalized: 34. Deaths: 0 | 17.31 | 6.61 | 0 | ||||
| 40-49: 440 cases. Hospitalized: 50. Deaths: 2 | 14.81 | 11.36 | 0.45 | ||||
| 50-59: 544 cases. Hospitalized: 74. Deaths: 5 | 18.32 | 13.60 | 0.92 | ||||
| 60-69: 342 cases. Hospitalized: 103. Deaths: 16 | 11.52 | 30.12 | 4.68 | ||||
| 70-79: 264 cases. Hospitalized: 125. Deaths: 34 | 8.89 | 47.35 | 12.88 | ||||
| 80-89: 238 cases. Hospitalized: 89. Deaths: 75 | 8.01 | 37.39 | 31.51 | ||||
| 90- : 146 cases. Hospitalized: 34. Deaths: 51 | 4.92 | 23.29 | 34.93 | ||||
| Total: 2,970. Hospitalized: 526. Deaths: 183 | 100 | 17.71 | 6.16
|
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