Study location
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Three districts: Bogra, Maulvibazaar and Faridpur
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Three districts of Jharkhand and Orissa: Keonjhar, West Singhbhum and Saraikela
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Mumbai municipality
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Mchinji district
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Three districts: Lilongwe, Salima and Kasungu
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Period for which data are included
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1st Feb 2005 - 31st Dec 2007
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1st July 2005 - 30th June 2008
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1st October 2005 - 30th September 2008
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1st January 2005 - 31st January 2009 (study is ongoing)
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1st July 2008 - 31st July 2010 (study is ongoing)
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Estimated population
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478 000
|
228 000
|
280 000
|
180 000
|
312 000
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Design
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Two-by-two factorial cluster RCT
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Cluster RCT
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Cluster RCT
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Two-by-two factorial cluster RCT
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Two-by-two factorial cluster RCT
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Stratification
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By district (3 strata)
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By district (3 strata)
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By municipal ward (6 strata)
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None
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None
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Cluster characteristics
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Villages making up a union
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8-10 village with residents classified as tribal or OBC
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1000-1500 households in slum areas
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Aggregated villages and group village headman areas
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Aggregated villages and group village headman areas in the catchment area of one Health Centre/Dispensary
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Total number of clusters (Number included in this study)**
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18 (5)
|
36 (18)
|
48 (24)
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48 (12)
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76 (30)
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Annual births per cluster: Mean (SD)
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587 (123)
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171 (38)
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131 (61)
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139 (25)
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143 (61)
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Mean cluster population (SD, min, max)
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27953 (5953, 15441-35110)
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6338 (2101, 3605-7467)
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5865 (1077, 4310-7750)
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3958 (404, 3068-4645)
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3934 (1332, 2121-8558)
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Crude birth rate***
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20.8
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28.1
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22.3
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35.1
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35.0
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