Table 3

Strength of the relationship and coefficient of determination between unit cost and program scale


VCT
SW
PMTCT


Unit cost decrease associated with doubling of scale 1
p-value of regression
Coefficient of determination (R2)
Unit cost decrease associated with doubling of scale 1
p-value of regression
Coefficient of determination (R2)
Unit cost decrease associated with doubling of scale 1
p-value of regression
Coefficient of determination (R2)

India
32.5%
< 0.001
0.83
41.8%
< 0.001
0.88
23.0%
0.038
0.42
Mexico
15.3%
0.066
0.20






Russia
27.2%
0.021
0.28
41.0%
< 0.001
0.84



South Africa
2.4%
0.033
0.33
31.2%
0.015
0.38



Uganda
27.5%
0.045
0.29








STI
IEC
RR

India
52.4%
0.050
0.42






Mexico
32.3%
0.038
0.70
46.3%
< 0.001
0.91



Russia
58.0%
0.385
0.26



34.5%/47.9% 2
0.004/0.022
0.45/0.962
South Africa









Uganda










1. "Doubling" is a 100% increase in output from the first quartile output value.

2. Needle exchange programs/Rehabilitation-focused programs

Marseille et al. BMC Health Services Research 2007 7:108   doi:10.1186/1472-6963-7-108