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Table 1 Outlet and Household survey sampling locations and sample size across selected groups, including planned sample size and actual sample size achieved

From: The impact of the private sector co-payment mechanism (PSCM) on the private market for ACT in Nigeria: results of the 2018 cross-sectional outlet and household market surveys

Outlet survey sample

Malaria endemic group

# total states nationwide

2018 Population

% total population

Outlet sample size (planned)

Selected state(s)

Sample size achieved

Group 1: 0–10%

2

19,086,824

10

75

Imo

77

Group 2: 10–30%

24

114,617,062

59

449

Kogi

Gombe

Osun

406

Group 3: 30–50%

8

48,204,958

25

189

Kano

155

Group 4: > 50%

3

14,014,062

7

55

Edo

57

Total

37

195,922,906

100

768

 

695

HH survey sample

Malaria endemic group

Selected state

% state population/total population

Sample size planned

Sample size achieved

0–10

Imo

21

80

90

10–30

Gombe

12

45

75

30–50

Kano

51

196

233

> 50

Edo

16

63

81

Total

100

100

384

479