Effect of the intervention on psychiatrist supply of incentive-eligible visits
| Outcome | Postdischarge visits/mo per psychiatrist* | Post–suicide attempt visits/mo per psychiatrist* | ||||
|---|---|---|---|---|---|---|
| Full sample | Q1–Q3 providers | Q4 and Q5 providers | Full sample | Q1–Q3 providers | Q4 and Q5 providers | |
| Mean eligible visits/mo | ||||||
| Before introduction of incentives | 1.50 (1.47 to 1.53) | 0.30 (0.29 to 0.31) | 3.33 (3.23 to 3.43) | 1.35 (1.32 to 1.38) | 0.26 (0.25 to 0.27) | 3.03 (2.93 to 3.12) |
| After introduction of incentives | 1.43 (1.41 to 1.46) | 0.42 (0.40 to 0.44) | 2.94 (2.85 to 3.03) | 1.23 (1.21 to 1.26) | 0.40 (0.38 to 0.43) | 2.47 (2.40 to 2.54) |
| Model estimates† | ||||||
| Pre-incentive trend‡ | −0.0045 (−0.0102 to 0.0011) | −0.0008 (−0.0028 to 0.0011) | −0.0100 (−0.0230 to 0.0029) | −0.0071 (−0.0117 to −0.0023) | −0.0010 (−0.0035 to 0.0004) | −0.0171 (−0.0267 to −0.0057) |
| Change in level after introduction of incentives§ | 0.0099 (−0.0989 to 0.1206) | 0.0862 (0.0506 to 0.1209) | −0.0952 (−0.3211 to 0.1440) | −0.0910 (−0.1885 to 0.0026) | 0.0697 (0.0391 to 0.1244) | −0.3075 (−0.5212 to −0.1210) |
| Change in trend after introduction of incentives¶ | 0.0032 (−0.0035 to 0.0095) | 0.0030 (0.0006 to 0.0054) | 0.00008 (−0.0152 to 0.0147) | 0.0102 (0.0045 to 0.0159) | 0.0056 (0.0027 to 0.0086) | 0.0143 (0.0015 to 0.0259) |
| Post-incentive trend** | −0.0013 (−0.0050 to 0.0020) | 0.0022 (0.0008 to 0.0035) | −0.0098 (−0.0172 to −0.0032) | 0.0030 (−0.0003 to 0.0062) | 0.0046 (0.0021 to 0.0064) | −0.0029 (−0.0091 to 0.0031) |
Note: Q1 to Q5 represent quintiles, where Q1 = lowest quintile and Q5 = highest quintile for the quantity of incentive-eligible services provided in the pre-incentive period.
↵* All estimates are presented with 95% confidence intervals.
↵† Confidence intervals on model estimates were calculated with bootstrap standard errors (using 1000 replications). All estimates are conditional on other model covariables (not reported).
↵‡ The monthly change in the mean number of visits before introduction of the incentives.
↵§ The level change in the mean monthly number of visits after introduction of the incentives.
↵¶ The change in the trend for mean monthly number of visits after introduction of the incentives, compared with the monthly trend before introduction of the incentives.
↵** The monthly change in the mean number of visits after introduction of the incentives.