Skip to main content

Table 3 Global regression estimates on standardized mortality ratios (SMRs) for suicide (2005–2009)

From: Geospatial examination of lithium in drinking water and suicide mortality

 

OLS (full):

OLS (stepwise):

SAR:

 

Coeff.

t-val.

p-val.

Coeff.

t-val.

p-val.

Coeff.

z-val.

p-val.

Intercept

0.612

1.908

0.060

0.419

2.491

0.014 *

0.159

0.977

0.329

Lithium level

−7.000

−4.347

0.000 ***

−7.139

−4.847

0.000 ***

−4.844

−3.489

0.000 ***

Population density

0.000

0.565

0.574

      

Per capita income

−0.013

−1.039

0.301

      

Prop. of Roman Catholics

0.005

2.410

0.018 *

0.006

3.143

0.002 **

0.004

2.573

0.010 **

Unemployment rate

−0.038

−1.597

0.114

      

Psychiatrist density

−0.053

−1.110

0.270

−0.041

−1.479

0.142

−0.040

−1.608

0.108

Psychotherapist density

−0.001

−0.116

0.908

      

Gen. practitioner density

0.016

1.146

0.255

      

ρ

      

0.448

 

0.001 ***

  1. Signif.: ‘***’ 0.001, ‘**’ 0.01, ‘*’ 0.05.