Arulanandam Bernard, Beladi Hamid, Chakrabarti Avik
University of Texas at San Antonio, USA.
University of Wisconsin-Milwaukee, USA.
Public Health Pract (Oxf). 2021 Nov;2:100179. doi: 10.1016/j.puhip.2021.100179. Epub 2021 Aug 31.
The objective is to study the role, if any, of excess body weight in COVID-19 mortality.
This is a cross-country study of plausible associations between COVID-19 mortality and the proportion of overweight among adults, controlling for age, gender, and income.
Parametric and non-parametric regression analysis.
We observe a statistically significant positive association between COVID-19 mortality and the proportion of the overweight in adult populations spanning 154 countries. This association holds across countries belonging to different income groups and is not sensitive to a population's median age, proportion of the elderly, and/or proportion of females. The estimated elasticities of COVID-19 mortality, with respect to the proportion of the overweight in adult populations, are consistently higher for sub-samples of countries that belong to a higher income group. On an average, every percentage point increment in the proportion of the overweight in adult populations contributes to an additional 3.5% points to COVID-19 mortality for high income countries: the limits of confidence intervals around this point estimate range between 1.5 and 5.4.
A positive association between COVID-19 mortality and the proportion of the overweight in a country's adult population is robust, subject to alterations in the conditioning information set on age, gender, and income. Our findings call for an effective alignment of public policy regulations with public health priorities.
研究超重是否在新冠病毒疾病（COVID-19）死亡率中发挥作用。
这是一项跨国研究，旨在探究COVID-19死亡率与成年人超重比例之间可能存在的关联，并对年龄、性别和收入进行控制。
参数和非参数回归分析。
我们观察到，在涵盖154个国家的成年人口中，COVID-19死亡率与超重比例之间存在统计学上显著的正相关。这种关联在不同收入组别的国家中均成立，并且对人口的年龄中位数、老年人比例和/或女性比例不敏感。对于属于较高收入组别的国家子样本，相对于成年人口中超重比例的COVID-19死亡率估计弹性始终更高。平均而言，成年人口中超重比例每增加一个百分点，高收入国家的COVID-19死亡率就会额外增加3.5个百分点：此点估计周围的置信区间范围在1.5至5.4之间。
COVID-19死亡率与一个国家成年人口中超重比例之间的正相关关系是稳健的，但会因年龄、性别和收入的条件信息集变化而改变。我们的研究结果呼吁公共政策法规与公共卫生优先事项有效协调一致。
