Table 3.
Relative risk of returning to work after different categories of stroke, among all registered cases of stroke in the Swedish population between 1996 and 2000.
| Stroke subtype | |||
|---|---|---|---|
| Cerebral infarction | Subarachnoid haemorrhage | Intracerebral haemorrhage | |
| n = 4754 | n = 1051 | n = 892 | |
| Independent variable | RRb (95% CI) | RR (95% CI) | RR (95% CI) |
| Education | p = 0.102 | p = 0.439 | p = 0.204 |
| Compulsory | 1 (ref) | 1 (ref) | 1 (ref) |
| Upper secondary | 1.01 (0.93-1.09) |
1.03 (0.86-1.22) |
1.09 (0.88-1.37) |
| University | 1.10† (1.00-1.21) |
1.13 (0.93-1.38) |
1.25† (0.97-1.60) |
| Income | p < 0.001 | p < 0.001 | p < 0.001 |
| 1st quartile (lowest) | 1 (ref) | 1 (ref) | 1 (ref) |
| 2nd quartile |
1.35 (1.21-1.50) |
1.34 (1.10-1.64) |
1.69 (1.27-2.24) |
| 3rd quartile |
1.62 (1.46-1.80) |
1.63 (1.32-2.02) |
1.72 (1.29-2.29) |
| 4th quartile (highest) |
1.94 (1.74-2.16) |
1.91 (1.53-2.39) |
2.26 (1.69-3.01) |
| Women (ref = men, RR = 1) | p = 0.746 | p = 0.134 | p = 0.604 |
| Women | 0.99 (0.91-1.07) |
0.89 (0.76-1.04) |
0.95 (0.77-1.17) |
| Days of hospital care for strokec | p < 0.001 | p < 0.001 | p < 0.001 |
| Linear (per 10 days) |
0.81 (0.78-0.84) |
0.88 (0.83-0.94) |
0.85 (0.78-0.92) |
| Quadratic/100 days |
1.005 (1.003-1.007) |
1.000 (0.996-1.005) |
1.002 (0.996-1.008) |
Results from discrete time hazard regressions.
Results from discrete time hazard regressions controlling for age and age-square. The reference category is marked "Ref". The P-value to the right of the variable name is for the whole variable, e.g. if the variable represents a significant contribution to the model. These estimations are based on Wald tests. Results in bold have p < 0.05.
The same variables are included as in Model 3 in Table 2.
Persons were excluded if they had previously had an ischemic heart disease or TIA, or if they earned less than €6,600 in the year prior to the stroke. We also excluded 'stroke, not specified' (ICD 164) in Table 3 since we wanted as distinct categories as possible for the comparison.
† p < 0.10.
b RR = Relative Risk. A higher RR means higher probability of returning to work early. CI = Confidence Intervals.
c Linear and quadratic terms are entered simultaneously. P-values indicate the combined effect of linear and quadratic representation.