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Table 1 Study population and completeness of information, 2004 and 2007 surveys

From: Cluster-randomized study of intermittent preventive treatment for malaria in infants (IPTi) in southern Tanzania: evaluation of impact on survival

 

Baseline survey (2004)

Follow-up survey (2007)

Households visited

21,482/21,600

(99%)

243,612

 

Household head present

20,985/21,482

(98%)

227,789/243,612

(94%)

Household head agreed

20,894/20,985

(99.6%)

225,980/227,789

(99.2%)

Total population recorded

83,346

 

818,695

 

Women of reproductive age*

20,138

 

213,233

 

Women of reproductive aged interviewed

19,008

(94%)

193,848

(91%)

Mortality rate in infants 2-11 m (deaths/person-years)

36.2/1000

(217/59,936)

21.3/1000

(699/32,778)

Geometric mean of division-by-division mortality rate in infants 2-11 months

33.2/1000

95%CI: 27.2-40.4

Range: 12.4-81.1

 

22.1/1000

95%CI: 19.4-25.2

Range: 9.4-35.1

 
  1. * 15-49 yr in baseline and 13-49 yr in follow-up survey.