Anomalous Elderly Deaths during Ontario's 2020 Covid Pandemic

E. Jowett
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Abstract

Total deaths in the two elderly age groups in Ontario Canada were analyzed using two approaches to compare pre-Covid deaths with Covid 2020 deaths. The linear trendline of 2014-2019 pre-Covid deaths was used to de-trend the data relative to 2014, including for 2020. 1. Annual averages and standard deviations of the de-trended data showed that the 85+ age deaths in 2020 were within the 99.9% expected range of the preceding years, but the 65-84 group was well outside the 99.9% range. It can be argued that 2020 deaths in the 85+ group are not unusual when a high degree of certainty like 99.9% is selected. However, the 65-84 deaths are excessively high under any reasonable circumstances. Excess deaths were estimated at about +5% for both male and female in the 85+ group, whereas in the younger 65-84 group, males had +8% excess while females had +6% excess. 2. Successive weekly averages and standard deviations were calculated for each year in 2014-2019 and compared to the 2020 weeks. Deaths in the 85+ group were below normal in the first quarter of 2020, rising to a high ‘winter-type’ peak due to the Covid outbreak, followed by a below-normal summer and above-normal fourth quarter. The 65-84 deaths also started out low, but the second quarter Covid peak lingered, and both third and fourth quarters were above normal, leading to the overall high death rate of this group relative to the 85+ group. Influenza had caused a similar anomaly in April 2014, though with an infection rate an order of magnitude lower, deaths were far less extreme than in April 2020.
安大略省2020年冠状病毒大流行期间的异常老年人死亡
使用两种方法对加拿大安大略省两个老年年龄组的总死亡人数进行了分析,以比较Covid前死亡人数和Covid 2020死亡人数。使用2014-2019年新冠肺炎前死亡人数的线性趋势线来降低相对于2014年(包括2020年)的数据的趋势。1. 去趋势数据的年平均值和标准差显示,2020年85岁以上人群的死亡率在前几年99.9%的预期范围内,但65-84岁人群的死亡率远远超出了99.9%的预期范围。可以说,当选择99.9%这样的高确定性时,85岁以上人群的2020年死亡人数并不罕见。然而,65至84人的死亡人数在任何合理情况下都过高。在85岁以上人群中,男性和女性的超额死亡率估计都在+5%左右,而在65-84岁的年轻人群中,男性的超额死亡率为+8%,女性的超额死亡率为+6%。2. 计算了2014-2019年每年的连续周平均值和标准差,并与2020周进行了比较。2020年第一季度,85岁以上人群的死亡人数低于正常水平,由于新冠肺炎疫情的爆发,死亡率升至“冬季型”高峰,随后是夏季低于正常水平,第四季度高于正常水平。65-84岁的死亡人数一开始也很低,但第二季度的高峰持续存在,第三和第四季度都高于正常水平,导致这一年龄组的总体死亡率高于85岁以上年龄组。流感在2014年4月造成了类似的异常现象,尽管感染率低了一个数量级,但死亡人数远没有2020年4月那么极端。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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