From: The impact of hospital accreditation on quality measures: an interrupted time series analysis
Infection Control, Surveillance and Reporting Measures | Intercept | Time(β_{ 1 }) | Intervention (β_{ 2 }) (Change in level) | Tim_Aft_Int (β_{ 3 }) (Change in Slope) | R^{2} | 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 _{ 18 } | 6.90 | 0.00* | -0.71 | 0.00* | 1.41(0.09, 2.72) | 0.04* | 0.70(0.31, 1.100 | 0.001* | 0.30 | 1.63 | No AC | 0.00 | No Seasonality |
Y _{ 19 } | 0.65 | 0.22 | -0.05 | 0.48 | 0.25(-0.81, 1.32) | 0.63 | 0.08(-0.08, 0.23) | 0.33 | 0.12 | 1.61 | No AC | 0.00 | No Seasonality |
Y _{ 20 } | 0.08 | 0.50 | 0.00 | 1.00 | -0.05(-0.29, 0.18) | 0.64 | 0.00(-0.03, 0.04) | 0.81 | 0.51 | 2.31 | No AC | 0.00 | No Seasonality |
Availability, Content and Use of Patient Records | |||||||||||||
Y _{ 17 } | 57.33 | 0.000* | 1.95 | 0.0058* | 4.33(-4.98, 13.64) | 0.35 | -1.85(-3.22, -0.480 | 0.01* | 0.54 | 1.75 | No AC | 0.01 | No Seasonality |
Mortality Rate | |||||||||||||
Y _{ 21 } | -0.04 | 0.59 | 0.02 | 0.15 | -0.01(-0.16, 0.140 | 0.90 | -0.02(-0.04, 0.01) | 0.15 | 0.10 | 2 | No AC | 0.00 | No Seasonality |