Table 3 Results of simple regression analysis investigating the number of suicides against the monthly mean K index value, monthly mean sunspot numbers, monthly unemployment rate (%), proportion of elderly people in the population (%), monthly mean air pressure (hPa), monthly mean air temperature (°C), monthly mean humidity (%), and monthly mean day length (h)
From: Association of geomagnetic disturbances and suicides in Japan, 1999–2010
Covariates | Male | Female | ||||
|---|---|---|---|---|---|---|
Coefficient | SE | P-value | Coefficient | SE | P-value | |
K index value | 7.6 | 3.0 | 0.01 | 0.74 | 1.19 | 0.54 |
Sunspot numbers | 0.16 | 0.30 | 0.59 | 0.04 | 0.12 | 0.75 |
Unemployment rate (%) | 52.0 | 23.1 | 0.03 | 8.0 | 10.3 | 0.44 |
Proportion of elderly people in the population (%) | −5.8 | 7.1 | 0.42 | −0.41 | 2.5 | 0.87 |
Air pressure (hPa) | −9.2 | 3.4 | 0.007 | −6.8 | 1.2 | <0.0001 |
Air temperature (°C) | 2.7 | 1.7 | 0.11 | 2.9 | 0.6 | <0.0001 |
Humidity (%) | −3.9 | 3.0 | 0.19 | 1.9 | 1.2 | 0.12 |
Day length (h) | 1.5 | 0.4 | 0.0009 | 0.67 | 0.17 | <0.0001 |