Table 9

Regression of logarithm of the number of cellular subscribers per 1 000 people

Variable

Coefficient

t-statistic

P > t

95% Conf. Interval

Logarithm of combined enrolment ratio

1.448

3.05*

0.004

0.485 to 2.411

Logarithm of per capita income

0.601

3.33*

0.002

0.234 to 0.969

Regulatory quality

0.144

0.35

0.732

-0.705 to 0.993

Rule of law

-0.616

-0.92

0.363

-1.972 to 0.740

Corruption

0.992

1.71

0.095

-.183 to 2.167

Constant

-6.656

-3.74

0.001

-10.271 to -3.041

Number of observations

41

F(5, 35) =

13.43

Prob > F

0.0000

Adjusted R-squared

0.6084

*Statistically significant at 95% level of confidence.

Kirigia et al. BMC Public Health 2005 5:137   doi:10.1186/1471-2458-5-137