Table 3

Cost-effectiveness of postal survey approaches

Long

Short

Combined


Survey pack

Reminderb

Survey pack

Reminderb

Survey pack

Reminderb




Card

Pack

Card

Pack

Card

Pack


No. printed

500

231

216

500

224

224

1000

455

440

Total cost (£)

1712.8

150.1

545.1

1385.6

144.4

402.6

3098.4

294.5

947.7

Unit cost (£)

3.4

0.7

2.5

2.8

0.6

1.8

4.8

0.6

2.2

No. returned

42

12

18

62

14

23

104

26

41

Cost-effectivenessa (£)

40.7

12.5

30.3

22.4

10.3

17.5

29.8

11.3

23.1


a Cost per usable survey returned

b Additional cost of reminder

Sahlqvist et al. BMC Medical Research Methodology 2011 11:62   doi:10.1186/1471-2288-11-62

Open Data