Demographic and Health Survey 2009-10 - Timor-Leste Ministry of ...

SAMPLE DESIGN Appendix A
A.1 OBJECTIVES OF THE SURVEY
The 2009 Timor-Leste Demographic and Health Survey (TLDHS 2009-10) was the second of
its kind following the survey conducted in 2003. TLDHS 2009-10 selected a nationally representative
sample consisting of 12,285 residential households. In sampled households, all women between the
ages of 15 and 49 who were members of the households or who stayed in the households the night
before the survey were eligible for the individual interview. The survey was designed to yield about
11,800 completed interviews of women age 15-49. The sample was designed to produce
representative results for most of the indicators for the country as a whole, for the urban and rural
areas, and for each of the thirteen districts.
Apart from the female survey, a male survey was conducted in one-third of the households
selected for the female survey. All men age 15-49 who were usual members of the household or who
stayed in the household the night before the survey were eligible for the male individual interview.
This sampling plan was expected to yield about 3,800 completed interviews of men age 15-49. In this
sub-sample, all women who were eligible for the individual interview and all their young children
aged 6-59 months were asked consent for an anemia testing.
A.2 SAMPLING FRAME
The sampling frame used for the TLDHS 2009 was the 2004 Timor-Leste Population and
Housing Census (TLPHC) (NSD, 2006), provided by the National Statistics Directorate (NSD). The
sampling frame is a complete list of 1,163 Enumeration Areas (EAs) created for the 2004 census.
Among the 1,163 EAs, 240 are urban residence and 923 are rural residence.
In Timor-Leste, 26.0% of the household population lives in urban areas, and they occupy
23.1% of the residential households.
A.3 SAMPLING PROCEDURE AND SAMPLE ALLOCATION
The sample for TLDHS 2009 was a stratified sample selected in two stages from the TLPHC
2004. Stratification was achieved by separating each of the 13 districts into urban and rural areas. In
total, 26 sampling strata were created. Samples were selected independently in every stratum, through
a two-stage selection process. Implicit stratification was achieved at each of the lower administrative
levels by sorting the sampling frame before sample selection, according to administrative units and by
using a probability proportional to size selection at the first stage of sampling.
In the first stage, 455 EAs were selected with probability proportional to the EA size. The EA
size was the number of households residing in the EA at the time of the census. Standard DHS
procedures call for a new listing of households in the selected EAs before conducting the household
selection. However, because of time and other constraints, the households were selected from the
TLPHC 2004 census results without conducting a new household listing operation.
In the second stage of selection, a fixed number of 27 households were randomly selected in
every cluster by an equal probability systematic sampling procedure. This number was increased from
the original design of 24 households per EA to account for the outdated census household listing. The
household selection was carried out in the office. The GPS coordinates collected for each household
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