Table 2. Comparison of TAC trough levels between BPAR and non-BPAR groups.

TAC groups		Non-BPAR (No.)	BPAR (No.)	P value
Total number of BPAR			11
TAC trough level, ng/mL
	0–2 months	7.1 ± 1.8 (276)	7.0 ± 4.9 (2)	0.995
	3–6 months	6.1 ± 1.7 (270)	5.6 ± 2.9 (6)	0.730
	7–12 months	5.7 ± 1.6 (220)	3.5 ± 0.9 (3)	0.023 (PS = 0.76)
TAC CV, %
	0–2 months	31.4 ± 16.5 (276)	31.2 ± 23.3 (2)	0.990
	3–6 months	29.1 ± 28.4 (270)	27.8 ± 22.5 (6)	0.917
	7–12 months	28.3 ± 14.2 (220)	67.9 ± 24.2 (3)	< 0.001 (PS = 0.99)
Average number of TAC trough level measurement
	0–2 months	5	4	-
	3–6 months	4	2.8 ± 0.4	0.001
	7–12 months	6	4.0 ± 1.0	0.074

Values are shown as mean ± standard deviation.

BPAR = biopsy-proven acute rejection, TAC = tacrolimus, CV = coefficient of variation, PS = power statistic.