Hazard ratios stratified for diagnostic categories of first episodes of sickness absence related to hazard ratio for experiencing a recurrent episode of sickness absence.

<p>Hazard ratios stratified for diagnostic categories of first episodes of sickness absence related to hazard ratio for experiencing a recurrent episode of sickness absence.</p

Incidence density of sickness absence according to major diagnostic categories of the first episode.

<p>Incidence density of sickness absence according to major diagnostic categories of the first episode.</p

Hazard ratio according to number of previous periods of sickness absence regardless of cause for the total sample and stratified for gender.

<p>Hazard ratio according to number of previous periods of sickness absence regardless of cause for the total sample and stratified for gender.</p