TABLE 4.

Predicted power (%) of the GEE analyses with the independence working correlation when the CV of cluster sizes is η = 0.6

(exp(β0), exp(β1))	$\left({\sigma }_0^2,{\sigma }_1^2\right)$	N	$\overline{m}$	T = ∞	T = 6	T = 5	T = 4	T = 3	T = 2	T = 1
(1.25, 0.70)	(0.05, 0.05)	30	15	73.4	73.4	73.0	71.7	67.7	57.5	35.4
	(0.10, 0.10)	30	45	64.3	64.6	64.8	64.8	63.8	60.5	49.7
	(0.20, 0.20)	60	35	66.3	67.3	67.8	68.2	67.9	65.8	57.8
	(0.30, 0.30)	90	40	66.2	68.5	69.3	70.0	70.2	69.2	64.1
	(0.40, 0.40)	110	40	60.9	64.8	65.7	66.6	67.1	66.6	62.6
(2.70, 0.70)	(0.05, 0.05)	25	10	71.6	69.7	66.8	61.3	51.9	37.5	19.8
	(0.10, 0.10)	30	30	66.1	66.9	66.2	64.5	61.2	54.6	39.7
	(0.20, 0.20)	55	20	62.9	65.3	64.8	63.6	61.1	55.8	43.0
	(0.30, 0.30)	80	30	61.6	66.3	66.3	65.8	64.5	61.6	53.8
	(0.40, 0.40)	110	25	61.3	67.8	67.8	67.5	66.3	63.7	56.4