Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Institute for Healthcare Delivery Science, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
J Gen Intern Med. 2021 Apr;36(4):985-989. doi: 10.1007/s11606-020-06476-9. Epub 2021 Jan 26.
On April 17, 2020, the State of New York (NY) implemented an Executive Order that requires all people in NY to wear a face mask or covering in public settings where social distancing cannot be maintained. Although the Centers for Disease Control and Prevention recommended face mask use by the general public, there is a lack of evidence on the effect of face mask policies on the spread of COVID-19 at the state level.
To assess the impact of the Executive Order on face mask use on COVID-19 cases and mortality in NY.
A comparative interrupted time series analysis was used to assess the impact of the Executive Order in NY with Massachusetts (MA) as a comparison state.
We analyzed data on COVID-19 in NY and MA from March 25 to May 6, 2020.
The Executive Order on face mask use in NY.
Daily numbers of COVID-19 confirmed cases and deaths.
The average daily number of confirmed cases in NY decreased from 8549 to 5085 after the Executive Order took effect, with a trend change of 341 (95% CI, 187-496) cases per day. The average daily number of deaths decreased from 521 to 384 during the same two time periods, with a trend change of 52 (95% CI, 44-60) deaths per day. Compared to MA, the decreasing trend in NY was significantly greater for both daily numbers of confirmed cases (P = 0.003) and deaths (P < 0.001).
The Executive Order on face mask use in NY led to a significant decrease in both daily numbers of COVID-19 confirmed cases and deaths. Findings from this study provide important evidence to support state-level policies that require face mask use by the general public.
2020 年 4 月 17 日，纽约州（NY）颁布行政命令，要求所有在 NY 的人在无法保持社交距离的公共场合佩戴口罩或面罩。尽管美国疾病控制与预防中心建议公众使用口罩，但缺乏关于州级口罩政策对 COVID-19 传播影响的证据。
评估行政命令对 NY 口罩使用与 COVID-19 病例和死亡率的影响。
采用比较中断时间序列分析评估 NY 行政命令的影响，马萨诸塞州（MA）作为比较州。
我们分析了 2020 年 3 月 25 日至 5 月 6 日 NY 和 MA 的 COVID-19 数据。
NY 的口罩使用行政命令。
COVID-19 确诊病例和死亡人数的日平均数。
行政命令生效后，NY 的 COVID-19 确诊病例日平均数从 8549 例降至 5085 例，每日趋势变化 341 例（95%CI，187-496）。同期，死亡人数从 521 例降至 384 例，每日趋势变化 52 例（95%CI，44-60）。与 MA 相比，NY 的确诊病例（P = 0.003）和死亡人数（P < 0.001）的下降趋势更为显著。
NY 的口罩使用行政命令导致 COVID-19 确诊病例和死亡人数的日平均数均显著下降。本研究结果为支持州级要求公众使用口罩的政策提供了重要证据。
