Table 4 Interrupted time series models for level and trend changes for quality outcome score before and after implementation of the VDO program
Model 1: Intervention only | Model 2: Model 1 + age, gender and subsidy status | Model 3: Model 2 + CCI and ASA score | ||||
|---|---|---|---|---|---|---|
Estimates | p-value | Estimates | p-value | Estimates | p-value | |
Intercept | 9.877 (9.872—9.882) | < 0.01 | 9.504 (9.074—9.933) | < 0.01 | 9.922 (9.439—10.404) | < 0.01 |
Time | 0.001** (0.001—0.002) | < 0.01 | 0.001** (0.000—0.002) | < 0.01 | 0.004** (0.003—0.005) | < 0.01 |
Level | 0.015** (0.005—0.025) | < 0.01 | 0.025** (0.012—0.038) | < 0.01 | 0.028** (0.016—0.040) | < 0.01 |
Trend | -0.002** (-0.002—-0.001) | < 0.01 | -0.002 (-0.003—0.000) | 0.05 | -0.005 (-0.006—0.003) | 0.38 |
Age | 0.006 (0.000—0.012) | 0.07 | 0.005* (0.001—0.009) | 0.02 | ||
Gender | -0.038 (-0.201—0.126) | 0.66 | -0.082 (-0.242—0.079) | 0.32 | ||
Subsidy Status | -0.016 (-0.158—0.126) | 0.83 | 0.223 (0.051- 0.394) | 0.015 | ||
CCI | -0.202** (-0.305—-0.099) | < 0.01 | ||||
ASA Score | -0.197** (-0.272—-0.121) | < 0.01 | ||||