Face Masks to Reduce Symptomatic and Asymptomatic SARS-CoV-2 Infections in Bangladesh
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 试验地点
- 2
- 主要终点
- Asymptomatic and asymptomatic SARS-CoV-2 infection
研究概览
简要总结
The primary goal of the village-level intervention is to assess whether mask-wearing reduces community-level asymptomatic and symptomatic SARS-CoV-2 infections, assessed via PCR testing. The study also examines if community-based activation through values or individual activation through information results in higher mask-wearing.
详细描述
Detailed Description:
This study intends to answer the following research questions:
Can mask distribution and mask promotion at homes, mosques, markets and other public areas successfully change community mask-wearing norms to increase mask-wearing, even years into a pandemic?
Can community mask-wearing reduce SARS-CoV-2 infections (both symptomatic and asymptomatic)?
Is increased prevalence of community-level mask-wearing associated with decreased physical distancing?
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Investigator)
盲法说明
The intervention involves wearing a face mask so participants will know if they are in the intervention group. The investigators will be blinded as to intervention assignment.
入排标准
- 年龄范围
- 12 Years 至 —（Child, Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Live in selected village
排除标准
- 未提供
结局指标
主要结局
Asymptomatic and asymptomatic SARS-CoV-2 infection
时间窗: approximately weekly for 4 weeks; may be lengthened if the intervention is extended due to low than estimated seroprevalence at the start of the intervention
Asymptomatic and asymptomatic SARS-CoV-2 infection, assessed using PCR testing every 6-10 days after baseline, among individuals regardless of whether they report symptoms of COVID-19
次要结局
- Respiratory infection prevalence(approximately weekly for 4 weeks; may be lengthened if the intervention is extended due to low than estimated seroprevalence at the start of the intervention)
- Physical distancing(Intervention weeks 0, 2, and 4; end line and midline timepoints may be adjusted if the intervention is extended due to low than estimated seroprevalence at the start of the intervention.)
- Observed prevalence of mask-wearing(Intervention weeks 0, 2, and 4; end line and midline timepoints may be adjusted if the intervention is extended due to low than estimated seroprevalence at the start of the intervention.)