Table 4

Standardized Rate Ratio (SRR) of the sick leave quota*
Observation year1
 Standardized Rate Ratio

Mean
 95%CI2
 Q33
 95%CI2
 P4
-2
 1.19
 0.82;1.57
 1.33
 0.95;1.78
 0.26
-1
 1.44
 1.05;1.82
 1.52
 1.18;1.88
 -
1
 1.45
 0.92;1.98
 1.34
 1.10;1.64
 0.90
2
 1.04
 0.67;1.42
 0.96
 0.65;1.36
 0.03
3
 1.12
 0.69;1.54
 1.01
 0.76;1.48
 0.01
4
 1.10
 0.71;1.54
 1.01
 0.75;1.52
 0.02

* Subcohort of patients at work with nonmissing data (n = 187), standardised to German company health insurance population, stratified by calendar year, sex and age.

1 time period with regard to the time of beginning of the treatment of the patient (-3 = observation year three years before, 1 = first observation year after treatment and so one);

2 95% confidence intervall;

3 75. Percentile, a SSR-Q3 of 1.0 means that in that given observation year 25% of the observed patients show the same sick leave durations as in their corresponding reference group regarding age and gender;

4 P-value contrasted to the observation year -1.

Moebus et al. BMC Public Health 2006 6:28   doi:10.1186/1471-2458-6-28