Table 1 Spearman correlation r _s between standardized mortality ratios (SMRs) for suicide (2005–2009) and district characteristics

Lithium level, mean (mg/l)

−0.26

0.009 **

Population density (per km²)

−0.35

0.000 ***

Per capita income (in 1,000 Euro)

−0.47

0.000 ***

Proportion of Roman Catholics, %

0.37

0.000 ***

Unemployment rate, %

−0.14

0.178

Psychiatrist density (per 10,000)

−0.41

0.000 ***

Psychotherapist density (per 10,000)

−0.49

0.000 ***

General practitioner density (per 10,000)

−0.17

0.099