Universidade Estadual Paulista. Faculdade de Medicina de Botucatu. Departamento de Infectologia. Botucatu, SP, Brasil.
Universidade Estadual Paulista. Departamento de Bioestatística. Instituto de Biociências da Botucatu. Botucatu, SP, Brasil.
Rev Saude Publica. 2021 Aug 6;55:48. doi: 10.11606/s1518-8787.2021055003599. eCollection 2021.
Interrupted time series analyses were conducted to measure the impact of social distancing policies (instituted on March 22, 2020) and of subsequent mandatory masking in the community (instituted on May 4, 2020) on the incidence and effective reproductive number of COVID-19 in São Paulo State, Brazil. Overall, the impact of social distancing both on incidence and Rt was greater than the incremental effect of mandatory masking. Those findings may reflect either a small impact of face masking or the loosening of social distancing after mandatory use of masks.
采用中断时间序列分析来衡量 2020 年 3 月 22 日实施的社交距离政策和 2020 年 5 月 4 日实施的社区强制性戴口罩对巴西圣保罗州 COVID-19 的发病率和有效繁殖数的影响。总体而言，社交距离对发病率和 Rt 的影响大于强制性戴口罩的增量影响。这些发现可能反映了面部口罩的影响较小，或者在强制使用口罩后社交距离的放宽。
