 
Estimated value (km)

95% confidence interval (km)

p value


Female (reference: male)
 
0.69

0.65–0.74

0.1690

Registration year (reference: 1978)

1980

1.07

0.91–1.27

0.4020

1982

0.94

0.79–1.11

0.4400

1984

0.72

0.61–0.85

0.0000

1986

0.87

0.74–1.02

0.0810

1988

0.72

0.61–0.85

0.0000

1990

0.81

0.69–0.96

0.0130

1992

0.87

0.74–1.03

0.1030

1994

1.06

0.90–1.25

0.4680

1996

0.97

0.82–1.14

0.7020

1998

0.87

0.74–1.03

0.1040

2000

0.84

0.71–0.99

0.0350

2002

0.70

0.59–0.83

0.0000

 We calculated the distance between the initial and the 10year workplace since registration before the statistical analysis. The last registration year included in the current analysis was 2002 because the most recent data was from 2012. The estimated values in the table were converted from the coefficients analyzed by the generalized linear model