Table 2 The study sample calculation strategy

Age and gender groups

Average number of people per household

Average number of households per EA* in the study cities

Number of EA needed for the study

Estimated number of people in the selected EA

Estimated number of people to contact

Estimated number of people to select in each EA

Estimated number of people needed after round 1

Estimated number of people needed after round 2

Estimated number of people needed after round 3

Estimated number of people needed after round 4