R8-21_World_Bank_Nigeria_Household_Survey_2010

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Survey Implementation Geographic Area The survey was conducted in nine states, five of which are in the northern region (Kano, Jigawa, Bauchi, Gombe, and Kaduna) and the remaining four in the southern region (Anambra, Delta, Akwa Ibom, and Rivers) of Nigeria. In each region, one state acted as the control (Kaduna in the north, and Delta in the south). These two control states are not supported by the World Bank Malaria Control Booster Project (MCBP), but are Global Fund–assisted states. The map in Figure 1 presents the survey states (intervention and control). Sample Design A multistage random sampling methodology was used to select 19 households in each local government area (LGA). In the first stage, 84 LGAs were selected, with simple random sampling from 263 LGAs in the nine states. The number of LGAs selected per state was calculated using a combined cluster sampling and Lot Quality Assurance Sampling (LQAS) methodology known as Large Country LQAS (LC-LQAS). The number of LGAs included in the sample was determined by the LC-LQAS sample size formula. 4 This sample size n is dependent on six parameters: (1) the number of samples collected in each supervision area (SA) m; (2) the total number of SAs in a catchment area (CA) N; (3) the total population in the CA (usually based on a national census) N* cen ; (4) the average of the square of the populations in each SA M — 2 ; (5) an estimate of the intraclass correlation (ICC) rˆ; and (6) the maximum desired length for the confidence interval l max , which in this case is 0.20. (1 + (m – 1)rˆ n = N ——————————————–— l max N* cen (m – 1)(1 – rˆ) ———— 2 ——–———— + mrˆ 1.96 NM — 2 4 Malaria Control Booster Project
Table 1 presents by state the number of LGAs selected and the LQAS sample size of 19 used in each LGA. In the second stage, 19 villages were selected randomly using Probability Proportional to Size Sampling (PPS) in each LGA. The lists of villages were collected from the LGAs. Village population sizes were estimated using the most recent census. Finally, at the village level, a starting point for the first respondent was randomly selected from a map constructed by the data collector using the segmentation sampling technique. A household was defined as groups of persons who eat from the same cooking pot. Once the starting point was selected, the interviewer administered one of four sets of questionnaires to an eligible respondent. The interviewer then went to the next-nearest door and checked at that household for eligible respondents and administered the appropriate questionnaire. Only one eligible respondent was interviewed in every household, with the exception of mothers with children with diarrhea or fever. If an eligible respondent was absent or more than 20 minutes away, the interviewer went to the next-nearest door and checked at that household for an eligible respondent. The interviewer continued this process until he or she found an eligible respondent for all six questionnaires included in the set. The inclusion criteria for selection of six respondents are as follows: 1. Head of household 2. Mother or caregiver of an infant aged 0 to 11 months 3. Mother or caregiver of a child aged 12 to 23 months 4. Mother or caregiver of a child aged 0 to 59 months 5. Mother or caregiver of a child aged 0 to 59 months with diarrhea 6. Mother or caregiver of children aged 0 to 59 months with fever All 19 sets of questionnaires administered in the villages selected from each LGA using PPS had their own randomly selected starting point. A total of 9,576 interviews were conducted in 1,596 settlements (intervention 1,235; control 361) in 84 LGAs in nine states. Table 1. Sampled LGAs By State and Sample Size State Total Number of LGAs Number of LGAs Sampled Sample Size Northern Region Kano 44 10 19 190 Jigawa 27 9 19 171 Bauchi 20 9 19 171 Gombe 11 8 19 152 Kaduna (control) 23 9 19 171 Total 125 45 Southern Region Rivers 23 10 19 190 Akwa Ibom 31 10 19 190 Anambra 21 9 19 171 Delta (control) 25 10 19 190 Total 100 39 1596 Sets of Questionnaires 2010 Malaria Household Survey in Nine States of Nigeria 5
Page 1 and 2: 2010 Malaria Household Survey in Ni
Page 3: National Malaria Control Programme
Page 7: Acknowledgments We thank the Honora
Page 11: Tables and Figures Table 1. Sampled
Page 15 and 16: Executive Summary The National Mala
Page 17: Introduction The National Malaria C
Page 21 and 22: (Gombe and Kaduna), and Bauchi. The
Page 23 and 24: RESULTS AND DISCUSSION Demographic
Page 25 and 26: percent had a car; in Gombe, only 6
Page 27 and 28: Percent Figure 4. Use of LLIN Durin
Page 29 and 30: Percent 100 90 80 70 60 50 40 30 20
Page 31 and 32: 100 90 Figure 8. Knowledge of sympt
Page 33 and 34: Table 9. Project Outcome Indicators
Page 35 and 36: Annex 1. Demographic and Socioecono
Page 37 and 38: Annex 3. List of Supervisors, Inter
Page 45 and 46: ANNEX 4. SAMPLED LOCAL GOVERNMENT A

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