Table 7.
Correlated random effects results
| Models | ||||
|---|---|---|---|---|
| (1) | (2) | (3) | (4) | |
| (Intercept) | 42.975 (5.950)*** | 6.059 (30.758) | 11.222 (30.751) | −19.008 (26.751) |
| Beds | 0.017 (0.017) | 0.009 (0.015) | 0.008 (0.015) | −0.000 (0.014) |
| Day case theatres | −0.439 (1.207) | −0.102 (1.047) | −0.230 (1.037) | −0.647 (1.005) |
| Nurse-to-bed ratio | 4.794 (3.921) | 0.669 (3.601) | 0.552 (3.562) | −1.196 (3.400) |
| Neurology | −0.648 (0.736) | −1.001 (0.680) | −0.913 (0.674) | −0.994 (0.655) |
| Neurophysiology | 1.669 (3.573) | −0.294 (3.128) | −0.367 (3.094) | −0.085 (3.017) |
| Neurosurgery | 0.794 (1.129) | 0.207 (1.041) | 0.189 (1.029) | 0.053 (1.002) |
| Teaching | 1.761 (1.556) | 1.032 (1.538) | 1.467 (1.547) | 1.110 (1.342) |
| Foundation trust | 2.614 (1.238)** | 1.600 (1.257) | 1.716 (1.252) | 1.675 (1.122) |
| ASU | 1.599 (1.957) | −0.140 (1.862) | −0.198 (1.849) | |
| RSU | 1.107 (1.772) | 0.809 (1.708) | 0.664 (1.699) | |
| CSU | 3.716 (2.197)* | 0.143 (2.123) | 0.026 (2.111) | |
| SUTC | 2.389 (1.026)** | 2.559 (0.963)*** | 2.580 (0.956)*** | |
| Specialist | 5.394 (1.161)*** | 2.575 (1.172)** | 2.308 (1.170)* | |
| ESD | 2.000 (1.323) | 1.216 (1.244) | 1.152 (1.235) | |
| NeuroClinic | 3.364 (2.155) | 4.069 (2.020)** | 3.302 (2.035) | |
| PatientViews | −1.099 (1.920) | −2.051 (1.851) | −2.378 (1.844) | |
| Report | 0.683 (1.187) | 0.674 (1.121) | 0.839 (1.116) | |
| Beds (mean) | −0.021 (0.017) | −0.011 (0.015) | −0.010 (0.015) | −0.003 (0.014) |
| Day case theatres (mean) | 0.349 (1.241) | −0.112 (1.085) | 0.072 (1.077) | 0.409 (1.033) |
| Nurse-to-bed ratio (mean) | 1.431 (4.314) | 3.191 (4.091) | 3.294 (4.054) | 3.770 (3.824) |
| Neurology (mean) | 0.825 (0.743) | 1.099 (0.691) | 1.004 (0.684) | 1.035 (0.663) |
| Neurophysiology (mean) | −1.424 (3.634) | 0.653 (3.197) | 0.785 (3.163) | 0.203 (3.073) |
| Neurosurgery (mean) | −0.881 (1.139) | −0.255 (1.049) | −0.238 (1.038) | −0.094 (1.010) |
| Stroke admissions | 0.030 (0.016)* | 0.022 (0.016) | 0.015 (0.015) | |
| Stroke mortality | −1.470 (0.958) | −1.209 (0.955) | −0.855 (0.918) | |
| No qualifications | −0.288 (0.366) | −0.322 (0.365) | −0.029 (0.320) | |
| Median wage | 0.067 (0.105) | −0.225 (0.169) | −0.133 (0.158) | |
| Neurosurgeons per region | −0.038 (0.201) | −0.224 (0.216) | −0.197 (0.208) | |
| Stroke admissions (mean) | −0.030 (0.016)* | −0.022 (0.016) | −0.015 (0.015) | |
| Stroke mortality (mean) | 1.715 (0.974)* | 1.416 (0.973) | 1.064 (0.933) | |
| Median wage (mean) | −0.025 (0.109) | 0.256 (0.168) | 0.194 (0.157) | |
| Neurosurgeons per region (mean) | 0.077 (0.202) | 0.268 (0.218) | 0.206 (0.209) | |
| Year dummy | 11.414 (5.220)** | 10.570 (4.746)** | ||
| Organisation score | 0.029 (0.083) | |||
| Organisation score (mean) | 0.449 (0.104)*** | |||
| AIC | 2222.916 | 2226.488 | 2218.599 | 2202.447 |
| BIC | 2317.328 | 2352.433 | 2348.008 | 2307.439 |
| Num. obs. | 303 | 303 | 303 | 303 |
*** , ** , * , . Table 7 shows correlated random effects results for the four models. Each time-varying explanatory variable appears once in its original form and once as a within-group (hospital) average. The coefficients of the variables reflect fixed effects estimates. We control for both hospital and time fixed effects in column 3 and column 4 by adding the year dummy