Table 3. Crude mortality rates and standardized mortality ratios by key strata.
| Variable | Freq. | No. deaths | PY follow-up | CMR | 95% CI | SMR | 95% CI | ||
|---|---|---|---|---|---|---|---|---|---|
| Gender | |||||||||
| Male | 20758 | 772 | 49324 | 15.7 | 14.6 | 16.8 | 4.3 | 4.0 | 4.6 |
| Female | 11564 | 259 | 27332 | 9.5 | 8.4 | 10.7 | 5.1 | 4.5 | 5.7 |
|
| |||||||||
| Age | |||||||||
| <18-30 | 13625 | 209 | 30484 | 6.9 | 6.0 | 7.9 | 6.5 | 5.6 | 7.4 |
| 30-40 | 7106 | 170 | 17074 | 10.0 | 8.6 | 11.6 | 6.5 | 5.6 | 7.6 |
| 40-50 | 6419 | 270 | 16655 | 16.2 | 14.4 | 18.3 | 5.1 | 4.5 | 5.8 |
| >50 | 5172 | 382 | 12444 | 30.7 | 27.8 | 33.9 | 3.2 | 2.9 | 3.5 |
|
| |||||||||
| Race/ethnicity | |||||||||
| White | 19744 | 627 | 45658 | 13.7 | 12.7 | 14.9 | 5.4 | 5.0 | 5.8 |
| Hispanic | 7832 | 242 | 19371 | 12.5 | 11.0 | 14.2 | 4.0 | 3.5 | 4.5 |
| African American | 2528 | 99 | 6149 | 16.1 | 13.2 | 19.6 | 3.1 | 2.5 | 3.7 |
| Other | 2218 | 63 | 5478 | 11.5 | 9.0 | 14.7 | 2.9 | 2.2 | 3.6 |
|
| |||||||||
| Unemployed | |||||||||
| No | 9812 | 219 | 25252 | 8.7 | 7.6 | 9.9 | 3.7 | 3.2 | 4.2 |
| Yes | 22510 | 812 | 51405 | 15.8 | 14.7 | 16.9 | 4.7 | 4.4 | 5.1 |
|
| |||||||||
| IV drug user | |||||||||
| No | 14495 | 339 | 33237 | 10.2 | 9.2 | 11.3 | 3.7 | 3.3 | 4.1 |
| Yes | 17827 | 692 | 43420 | 15.9 | 14.8 | 17.2 | 5.0 | 4.6 | 5.4 |
|
| |||||||||
| Medi-Cal beneficiary | |||||||||
| No | 23579 | 659 | 56456 | 11.7 | 10.8 | 12.6 | 4.5 | 4.2 | 4.8 |
| Yes | 8743 | 372 | 20201 | 18.4 | 16.6 | 20.4 | 4.4 | 4.0 | 4.9 |
|
| |||||||||
| Has mental illness | |||||||||
| No | 25805 | 766 | 61797 | 12.4 | 11.5 | 13.3 | 4.0 | 3.7 | 4.3 |
| Yes | 6517 | 265 | 14860 | 17.8 | 15.8 | 20.1 | 6.4 | 5.7 | 7.3 |
|
| |||||||||
| Died in treatment - overall | 183 | 28535 | 6.4 | 5.5 | 7.4 | 1.8 | 1.6 | 2.1 | |
| 1 to 14 days after admit | 19 | 1790 | 10.6 | 6.8 | 16.6 | 3.6 | 2.2 | 5.7 | |
| 15 to 28 days after admit | 8 | 1300 | 6.2 | 3.1 | 12.3 | 2.1 | 0.9 | 4.1 | |
| >28 days after admit | 156 | 25445 | 6.1 | 5.2 | 7.2 | 1.7 | 1.5 | 2.0 | |
|
| |||||||||
| Died in detoxification - overall | 20 | 3258 | 6.1 | 4.0 | 9.5 | 2.4 | 1.5 | 3.8 | |
| 1 to 14 days after admit | 11 | 767 | 14.4 | 7.9 | 25.9 | 5.5 | 2.7 | 9.8 | |
| 15 to 28 days after admit | 1 | 373 | 2.7 | 0.4 | 19.0 | 1.1 | 0.0 | 6.0 | |
| >28 days after admit | 8 | 2118 | 3.8 | 1.9 | 7.6 | 1.5 | 0.7 | 3.0 | |
|
| |||||||||
| Died in maintenance - overall | 163 | 25277 | 6.4 | 5.5 | 7.5 | 1.8 | 1.5 | 2.1 | |
| 1 to 14 days after admit | 8 | 1024 | 7.8 | 3.9 | 15.6 | 2.5 | 1.1 | 4.9 | |
| 15 to 28 days after admit | 7 | 926 | 7.6 | 3.6 | 15.8 | 2.4 | 1.0 | 4.9 | |
| >28 days after admit | 148 | 23327 | 6.3 | 5.4 | 7.5 | 1.7 | 1.5 | 2.0 | |
|
| |||||||||
| Died out of treatment –overall | 848 | 48122 | 17.6 | 16.5 | 18.8 | 6.1 | 5.7 | 6.5 | |
| 1 to 14 days after exit | 125 | 1398 | 89.4 | 75.0 | 106.5 | 31.5 | 26.2 | 37.5 | |
| 15 to 28 days after exit | 29 | 1474 | 22.8 | 15.8 | 32.7 | 8.0 | 5.4 | 11.5 | |
| >28 days after exit | 694 | 45449 | 15.3 | 14.2 | 16.4 | 5.3 | 4.9 | 5.7 | |
|
| |||||||||
| Total | 32322 | 1031 | 76657 | 13.4 | 12.7 | 14.3 | 4.5 | 4.2 | 4.8 |
PY: person-years; CMR: Crude Mortality Rate; SMR: Standardized Mortality Ratio; 95% CI: 95% confidence interval. The Poisson exact method was used to calculate 95% confidence intervals for SMRs.