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Table 2 ARIMA modelling parameter estimates of etanercept (L04AB01)

From: The impact of policy interventions to promote the uptake of biosimilar medicines in Belgium: a nationwide interrupted time series analysis

Parameter

Estimate*

Standard error (SE)

95% Confidence interval (CI)

P-value

Step change

−436.555

284.911

−994.981 to 121.871

0.133

Ramp

−44.502

15.148

−61.61 to −14.812

0.005

  1. ARIMA specification (0,3,1); R2 = 0.989; Ljung–Box Q estimate = 16.624 (P = 0.342). *No transformation has been performed
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Health Research Policy and Systems

ISSN: 1478-4505

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