Table 3 Surgical procedures and medication error use and near-misses
From: The impact of hospital accreditation on quality measures: an interrupted time series analysis
Model validation and parameter estimation | Diagnostic tests | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Surgical Procedure Measures | Intercept | Time(β 1 ) | Intervention (β 2 ) (Change in level) | Tim_Aft_Int (β 3 ) (Change in slope) | R2 | Autocorrelation (AC) Check (Durbin Watson) | Test for Seasonality/Stationarity (Dickey Fuller Unit Root Test) | ||||||
Value | P-value | Value | P-value | Coefficient 95%Confidence Interval (LCI, UCI) | P-value | Coefficient 95%Confidence Interval (LCI, UCI) | P-value | D-Value (before) | D-Value (after) | P-value | Result | ||
Y 7 | 87.91 | 0.00* | 1.21 | 0.00* | −2.70(−4.76, −0.63) | 0.01* | −1.18(−1.72, −0.64) | 0.01* | 0.96 | 1.30 | 2.53 | 0.00 | No Seasonality |
Y 8 | 14.89 | 0.00* | −0.28 | 0.38 | −0.36(−4.66, 3.95) | 0.87 | 0.32(−0.31, 0.95) | 0.31 | 0.49 | 2.10 | No AC | 0.00 | No Seasonality |
Y 9 | 0.08 | 0.5 | 0.003 | 0.88 | −0.05(−0.30, 0.20) | 0.69 | 0.01(−0.03, 0.04) | 0.63 | 0.34 | 1.86 | No AC | 0.00 | No Seasonality |
Reported medication error measure | |||||||||||||
Y 10 | 0.03 | 0.03* | 0.002 | 0.21 | −0.04(−0.06, −0.01) | 0.00* | −0.00(−0.01, 0.00) | 0.18 | 0.35 | 1.56 | No AC | 0.00 | No Seasonality |