Evaluation of statistical methods used in the analysis of interrupted time series studies: a simulation study

Table 2 Statistical methods and adjustments for autocorrelation

Method	Autocorrelation adjustment
Ordinary Least Squares	None
	Newey-West SE adjustment (lag-1)
Generalised least squares	Prais-Winsten
Restricted maximum likelihood	Lag-1 autocorrelation
	Lag-1 autocorrelation with small sample Satterthwaite approximation
Autoregressive integrated moving average	Lag-1 autocorrelation (i.e. ARIMA(1,0,0))

ISSN: 1471-2288