Table 2

Correlation of number of trials (if >0) vs each variable

Variable

r

95% CI for r

r2


GDP (in million US $)

0.87

0.79 to 0.92

0.76

Population (in thousands)

0.14

-0.11 to 0.38

0.02

GDP/Capita (US $)

0.31

0.06 to 0.52

0.10

Telephones/per 100 inhabitants

0.30

0.06 to 0.52

0.09


Moll et al. BMC Psychiatry 2003 3:18   doi:10.1186/1471-244X-3-18

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