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. Author manuscript; available in PMC: 2023 Jul 18.

Published in final edited form as: Stat Biopharm Res. 2022 Jul 18;14(4):433–443. doi: 10.1080/19466315.2022.2090429

Table 3.

Frequentist powers with different amounts of borrowing $(δ = 3.5, σ_{t}^{2} = 25)$ .

	n_t : n_c = 2 : 1		n_t : n_c = 2 : 1.5		n_t : n_c = 2 : 2
$σ_{c}^{2}$	N	Power	N	Power	N	Power
11.42	32 + 16 = 48	79.8%	32 + 24 = 56	86.5%	32 + 32 = 64	89.7%
16	40 + 20 = 60	81.9%	40 + 30 = 70	89.4%	40 + 40 = 80	92.7%
20.25	44 + 22 = 66	80.2%	44 + 33 = 77	88.8%	44 + 44 = 88	92.7%
25	52 + 26 = 78	82.1%	52 + 39 = 91	90.5%	52 + 52 = 104	94.2%