Time-varying SMART design and data analysis methods for evaluating adaptive intervention effects

Table 11 Power to select the optimal embedded adaptive intervention strategy for designs in Figs. 1 and 3

Comparison of designs in Figs. 1 and 3	β ₁₂	β ₂₂	β ₂₃	β ₃₂	β ₄₁	β ₄₂	Power to select optimal embedded adaptive strategy
Comparison of designs in Figs. 1 and 3	β ₁₂	β ₂₂	β ₂₃	β ₃₂	β ₄₁	β ₄₂	Time-varying SMART	Standard SMART
Without interaction	0.4	0.5	0.5	2			82.8 %	83.0 %
	0.3	−0.2	0.4	2			60.2 %	59.2 %
	0.3	−0.5	0.4	2			76.2 %	75.0 %
With interaction	0.4	0.5	0.5	2	0.5	−0.3	99.2 %	97.0 %
	0.6	0.5	0.4	2	0.2	0.2	63 %	62.8 %
	0.6	−0.5	−0.5	2	0.2	−0.3	72.2 %	73.4 %

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