What Works to Get the Elderly Vaccinated Against COVID-19? Experimental Evidence From India
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 3,006
- 试验地点
- 1
- 主要终点
- Received at least one shot
研究概览
简要总结
COVID-19 poses a substantial risk to elderly populations; understanding how to get elders vaccinated against the virus is therefore a policy priority. An experiment with elders in Tamil Nadu, India will be used to evaluate interventions policymakers might use to raise vaccination rates amongst the elderly. The particular interventions being tested are: calling elders to inform them about vaccination; encouragement of a "buddy system," whereby elders are accompanied to the vaccination site by another adult who could also get the vaccine; and seeding vaccination information with "gossips," individuals who elders identify as being good at spreading information in the elders' communities. The interventions are phone-based, and can be implemented quickly and at low cost. This makes them promising strategies the Tamil Nadu government and other governments could use to vaccinate elderly populations against COVID-19.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 55 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •At least 55 years of age
- •Has phone number
排除标准
- •Not part of the experiments registered under protocol IDs 223749 or 172020
研究组 & 干预措施
Community receives buddy and gossip treatment, individual informed directly (arm (1))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
(iii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders and to encourage their communities to use the buddy system to get elders vaccinated.
干预措施: Information (Behavioral)
Community receives buddy and gossip treatment, individual not informed directly (arm (2))
Individual elder lives in community with elders in arm (1).
干预措施: Buddy assigned in community (Behavioral)
Community receives buddy and gossip treatment, individual informed directly (arm (1))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
(iii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders and to encourage their communities to use the buddy system to get elders vaccinated.
干预措施: Buddy (Behavioral)
Community receives buddy and gossip treatment, individual informed directly (arm (1))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
(iii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders and to encourage their communities to use the buddy system to get elders vaccinated.
干预措施: Gossip intervention (Behavioral)
Community receives buddy and gossip treatment, individual informed directly (arm (1))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
(iii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders and to encourage their communities to use the buddy system to get elders vaccinated.
干预措施: Information assigned in community (Behavioral)
Community receives buddy and gossip treatment, individual informed directly (arm (1))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
(iii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders and to encourage their communities to use the buddy system to get elders vaccinated.
干预措施: Buddy assigned in community (Behavioral)
Community receives buddy and gossip treatment, individual not informed directly (arm (2))
Individual elder lives in community with elders in arm (1).
干预措施: Gossip intervention (Behavioral)
Community receives buddy and gossip treatment, individual not informed directly (arm (2))
Individual elder lives in community with elders in arm (1).
干预措施: Information assigned in community (Behavioral)
Community receives gossip treatment, individual informed directly (arm (3))
(i) Individual elder given vaccination information.
(ii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders.
干预措施: Information (Behavioral)
Community receives gossip treatment, individual informed directly (arm (3))
(i) Individual elder given vaccination information.
(ii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders.
干预措施: Gossip intervention (Behavioral)
Community receives gossip treatment, individual informed directly (arm (3))
(i) Individual elder given vaccination information.
(ii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders.
干预措施: Information assigned in community (Behavioral)
Community receives gossip treatment, individual not informed directly (arm (4))
Individual elder lives in community with elders in arm (3).
干预措施: Gossip intervention (Behavioral)
Community receives gossip treatment, individual not informed directly (arm (4))
Individual elder lives in community with elders in arm (3).
干预措施: Information assigned in community (Behavioral)
Community receives buddy treatment, individual informed directly (arm (5))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
干预措施: Information (Behavioral)
Community receives buddy treatment, individual informed directly (arm (5))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
干预措施: Buddy (Behavioral)
Community receives buddy treatment, individual informed directly (arm (5))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
干预措施: Information assigned in community (Behavioral)
Community receives buddy treatment, individual informed directly (arm (5))
(i) Individual elder given vaccination information.
(ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
干预措施: Buddy assigned in community (Behavioral)
Community receives buddy treatment, individual not informed directly (arm (6))
Individual elder lives in community with elders in arm (5).
干预措施: Information assigned in community (Behavioral)
Community receives buddy treatment, individual not informed directly (arm (6))
Individual elder lives in community with elders in arm (5).
干预措施: Buddy assigned in community (Behavioral)
Community receives information, individual informed directly (arm (7))
Individual elder given vaccination information.
干预措施: Information (Behavioral)
Community receives information, individual informed directly (arm (7))
Individual elder given vaccination information.
干预措施: Information assigned in community (Behavioral)
Community receives information, individual not informed directly (arm (8))
Individual elder lives in community with elders in arm (7).
干预措施: Information assigned in community (Behavioral)
结局指标
主要结局
Received at least one shot
时间窗: 8 weeks after intervention
Elders asked on phone call if they have received zero, one, or two doses of COVID-19 vaccine. Outcome takes the value of 1 if they received at least one shot, and 0 otherwise.
Received two shots
时间窗: 8 weeks after intervention
Elders asked on phone call if they have received zero, one, or two doses of COVID-19 vaccine. Outcome takes the value of 1 if they received two shots, and 0 otherwise.
次要结局
未报告次要终点
研究者
Esther Duflo
Professor
National Bureau of Economic Research, Inc.