ITS analysis estimates for monthly changes in acute care use, January 2010 to December 2019
| . | All individuals . | Adults only . | ||
|---|---|---|---|---|
| Outcome . | IRR (95% CI) . | P value . | IRR (95% CI) . | P value . |
| ED visits per 1000 with SCD | ||||
| Baseline rate in January 2010 | 0.157 (0.154-0.161) | <.001 | 0.237 (0.232-0.242) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.004 (1.004-1.005) | <.001 | 1.004 (1.004-1.004) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.059 (0.994-1.128) | .08 | 1.025 (0.961-1.094) | .45 |
| Monthly trend (slope) during PDMP phase-in | 0.983 (0.975-0.991) | <.001 | 0.981 (0.972-0.989) | <.001 |
| Immediate change in utilization during mandatory PDMP checking | 0.884 (0.839-0.931) | <.001 | 0.828 (0.785-0.874) | <.001 |
| Monthly trend (slope) during mandatory PDMP checking | 0.999 (0.994-1.003) | .54 | 0.997 (0.992-1.001) | .15 |
| ED 3-day revisits per 1000 discharges | ||||
| Baseline rate in January 2010 | 0.202 (0.191-0.213) | <.001 | 0.231 (0.218-0.245) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.003 (1.002-1.004) | <.001 | 1.002 (1.002-1.003) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.034 (0.918-1.164) | .58 | 1.039 (0.922-1.170) | .53 |
| Monthly trend (slope) during PDMP phase-in | 0.986 (0.973-0.999) | .03 | 0.987 (0.973-1.000) | .05 |
| Immediate change in utilization during mandatory PDMP checking | 0.847 (0.795-0.903) | <.001 | 0.869 (0.817-0.924) | <.001 |
| Monthly trend (slope) during mandatory PDMP checking | 0.995 (0.991-1.000) | .04 | 0.996 (0.991-1.000) | .09 |
| IP discharges per 1000 with SCD | ||||
| Baseline rate in January 2010 | 0.070 (0.069-0.071) | <.001 | 0.097 (0.095-0.100) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.001 (1.001-1.002) | <.001 | 1.001 (1.001-1.001) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.019 (0.958-1.083) | .56 | 0.963 (0.897-1.033) | .29 |
| Monthly trend (slope) during PDMP phase-in | 0.997 (0.989-1.005) | .52 | 0.996 (0.987-1.006) | .44 |
| Immediate change in utilization during mandatory PDMP checking | 0.993 (0.944-1.044) | .78 | 0.911 (0.859-0.965) | .002 |
| Monthly trend (slope) during mandatory PDMP checking | 1.003 (0.999-1.007) | .11 | 1.008 (1.003-1.012) | <.001 |
| IP 30-day readmissions per 100 discharges | ||||
| Baseline rate in January 2010 | 0.321 (0.312-0.330) | <.001 | 0.375 (0.364-0.386) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.001 (1.000-1.001) | .002 | 1.000 (1.000-1.001) | .46 |
| Immediate change in utilization during PDMP phase-in | 1.032 (0.952-1.118) | .45 | 1.024 (0.940-1.116) | .58 |
| Monthly trend (slope) during PDMP phase-in | 0.997 (0.986-1.007) | .56 | 0.999 (0.988-1.010) | .89 |
| Immediate change in utilization during mandatory PDMP checking | 0.957 (0.896-1.022) | .19 | 0.968 (0.902-1.039) | .36 |
| Monthly trend (slope) during mandatory PDMP checking | 1.007 (1.002-1.013) | .01 | 1.008 (1.003-1.014) | .003 |
| IP days per 100 discharges | ||||
| Baseline rate in January 2010 | 5.273 (5.189-5.359) | <.001 | 5.868 (5.776-5.962) | <.001 |
| Monthly trend (slope) before PDMP implementation | 0.999 (0.999-1.000) | <.001 | 0.999 (0.998-0.999) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.000 (0.951-1.051) | .99 | 1.021 (0.972-1.073) | .41 |
| Monthly trend (slope) during PDMP phase-in | 1.005 (0.998-1.011) | .14 | 1.003 (0.996-1.009) | .40 |
| Immediate change in utilization during mandatory PDMP checking | 0.995 (0.954-1.037) | .81 | 1.008 (0.968-1.050) | .70 |
| Monthly trend (slope) during mandatory PDMP checking | 1.002 (0.999-1.005) | .35 | 1.001 (0.998-1.005) | .38 |
| . | All individuals . | Adults only . | ||
|---|---|---|---|---|
| Outcome . | IRR (95% CI) . | P value . | IRR (95% CI) . | P value . |
| ED visits per 1000 with SCD | ||||
| Baseline rate in January 2010 | 0.157 (0.154-0.161) | <.001 | 0.237 (0.232-0.242) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.004 (1.004-1.005) | <.001 | 1.004 (1.004-1.004) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.059 (0.994-1.128) | .08 | 1.025 (0.961-1.094) | .45 |
| Monthly trend (slope) during PDMP phase-in | 0.983 (0.975-0.991) | <.001 | 0.981 (0.972-0.989) | <.001 |
| Immediate change in utilization during mandatory PDMP checking | 0.884 (0.839-0.931) | <.001 | 0.828 (0.785-0.874) | <.001 |
| Monthly trend (slope) during mandatory PDMP checking | 0.999 (0.994-1.003) | .54 | 0.997 (0.992-1.001) | .15 |
| ED 3-day revisits per 1000 discharges | ||||
| Baseline rate in January 2010 | 0.202 (0.191-0.213) | <.001 | 0.231 (0.218-0.245) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.003 (1.002-1.004) | <.001 | 1.002 (1.002-1.003) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.034 (0.918-1.164) | .58 | 1.039 (0.922-1.170) | .53 |
| Monthly trend (slope) during PDMP phase-in | 0.986 (0.973-0.999) | .03 | 0.987 (0.973-1.000) | .05 |
| Immediate change in utilization during mandatory PDMP checking | 0.847 (0.795-0.903) | <.001 | 0.869 (0.817-0.924) | <.001 |
| Monthly trend (slope) during mandatory PDMP checking | 0.995 (0.991-1.000) | .04 | 0.996 (0.991-1.000) | .09 |
| IP discharges per 1000 with SCD | ||||
| Baseline rate in January 2010 | 0.070 (0.069-0.071) | <.001 | 0.097 (0.095-0.100) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.001 (1.001-1.002) | <.001 | 1.001 (1.001-1.001) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.019 (0.958-1.083) | .56 | 0.963 (0.897-1.033) | .29 |
| Monthly trend (slope) during PDMP phase-in | 0.997 (0.989-1.005) | .52 | 0.996 (0.987-1.006) | .44 |
| Immediate change in utilization during mandatory PDMP checking | 0.993 (0.944-1.044) | .78 | 0.911 (0.859-0.965) | .002 |
| Monthly trend (slope) during mandatory PDMP checking | 1.003 (0.999-1.007) | .11 | 1.008 (1.003-1.012) | <.001 |
| IP 30-day readmissions per 100 discharges | ||||
| Baseline rate in January 2010 | 0.321 (0.312-0.330) | <.001 | 0.375 (0.364-0.386) | <.001 |
| Monthly trend (slope) before PDMP implementation | 1.001 (1.000-1.001) | .002 | 1.000 (1.000-1.001) | .46 |
| Immediate change in utilization during PDMP phase-in | 1.032 (0.952-1.118) | .45 | 1.024 (0.940-1.116) | .58 |
| Monthly trend (slope) during PDMP phase-in | 0.997 (0.986-1.007) | .56 | 0.999 (0.988-1.010) | .89 |
| Immediate change in utilization during mandatory PDMP checking | 0.957 (0.896-1.022) | .19 | 0.968 (0.902-1.039) | .36 |
| Monthly trend (slope) during mandatory PDMP checking | 1.007 (1.002-1.013) | .01 | 1.008 (1.003-1.014) | .003 |
| IP days per 100 discharges | ||||
| Baseline rate in January 2010 | 5.273 (5.189-5.359) | <.001 | 5.868 (5.776-5.962) | <.001 |
| Monthly trend (slope) before PDMP implementation | 0.999 (0.999-1.000) | <.001 | 0.999 (0.998-0.999) | <.001 |
| Immediate change in utilization during PDMP phase-in | 1.000 (0.951-1.051) | .99 | 1.021 (0.972-1.073) | .41 |
| Monthly trend (slope) during PDMP phase-in | 1.005 (0.998-1.011) | .14 | 1.003 (0.996-1.009) | .40 |
| Immediate change in utilization during mandatory PDMP checking | 0.995 (0.954-1.037) | .81 | 1.008 (0.968-1.050) | .70 |
| Monthly trend (slope) during mandatory PDMP checking | 1.002 (0.999-1.005) | .35 | 1.001 (0.998-1.005) | .38 |