Daily deaths across Italian municipalities in 2020 in excess with respect to 2015-2019

We calculate excess mortality, i.e., attributable to Covid-19, across all (7,272) Italian municipalities using death registry data (see References) by deducting from a municipality's (daily) number of deaths the average number of deaths over the previous five years in the same municipality, using an evenly-spaced-around window of seven days. The date ("GE" column) is in "mmdd" format, while the municipality code ("codice_comune" column) follows standard ISTAT codes. The sample period runs from February to April 2020, and excludes municipalities that were never hit by the Covid-19 disease within the first four months of 2020, i.e. cumulative mortality rate among residents of a municipality did not reach a threshold of 100 deaths per 100,000 inhabitants.

本研究利用死亡登记数据（见参考文献），针对全部7272个意大利市镇，计算了归因于新冠的超额死亡率（excess mortality）。具体计算方式为：以对称七天滑动窗口为基准，将某市镇的每日死亡数减去该市镇过去五年同期的平均死亡数。其中，日期字段（"GE"列）采用"mmdd"格式，市镇编码字段（"codice_comune"列）遵循标准意大利国家统计局（ISTAT）编码规则。本数据集的样本时段为2020年2月至4月，且剔除了2020年前四个月内未受新冠疫情波及的市镇——即该市镇居民的累计死亡率未达到每10万居民100例死亡的阈值。