Table 3.
Comparability ratioa of systemic lupus erythematosus (SLE) deaths as defined by the Cause of Death Register to SLE deaths as determined in the Swedish Lupus Linkage (SLINK) population, Sweden, 2001-2013b
| Characteristics | Comparability Ratio (95% CI) |
|---|---|
| Overall | 0.41 (0.38-0.43) |
| Age at death, y | |
| <50 | 0.51 (0.42-0.60) |
| 50-64 | 0.45 (0.39-0.50) |
| 65-74 | 0.40 (0.35-0.44) |
| 75-84 | 0.41 (0.37-0.45) |
| ≥85 | 0.32 (0.27-0.38) |
| Year of diagnosis and matching | |
| 1971-1986 | 0.41 (0.37-0.46) |
| 1987-2000 | 0.44 (0.40-0.47) |
| 2001-2005 | 0.36 (0.31-0.40) |
| 2006-2013 | 0.39 (0.32-0.47) |
| Sex | |
| Male | 0.39 (0.33-0.44) |
| Female | 0.41 (0.39-0.44) |
| Married at death | |
| Yes | 0.43 (0.39-0.46) |
| No | 0.40 (0.37-0.42) |
| Region at death | |
| Stockholm | 0.35 (0.30-0.41) |
| Middle | 0.41 (0.36-0.46) |
| West | 0.42 (0.37-0.47) |
| South | 0.44 (0.38-0.50) |
| Southeast | 0.41 (0.36-0.47) |
| North | 0.41 (0.34-0.48) |
| Cause of death | |
| Cardiovascular disease | 0.41 (0.37-0.46) |
| Stroke | 0.47 (0.39-0.55) |
| Infectious disease | 0.50 (0.43-0.57) |
| Renal failure | 0.56 (0.49-0.62) |
| Cancer | 0.27 (0.23-0.31) |
| Died in hospital | |
| Yes | 0.43 (0.39-0.46) |
| No | 0.38 (0.33-0.42) |
a Calculated as the ratio of SLE deaths as defined by the Cause of Death Register, divided by SLE deaths as determined in the SLINK cohort. This measure is an estimation of the extent to which the death certificate underestimates SLE mortality in mortality statistics.