TABLE 2

Linear Regression and Bland–Altman Comparisons Among Methods of MPA

Statistical measure	Blood only, method 2	Camera only, method 3	48-h camera only, method 4
Regression
R	0.99, P < 0.0001	0.95, ^*P < 0.0001	0.75, ^*P < 0.0001
Intercept	0.4 ± 0.3 GBq, P = 0.20	3.2 ± 0.5 GBq, ^*P < 0.0001	6.1 ± 1.6 GBq,^*P = 0.0001
Slope	0.96 ± 0.02, P < 0.0001	0.69 ± 0.03, ^*P < 0.0001	0.86 ± 0.09, P < 0.0001
Bland–Altman
R	−0.18, P = 0.14	−0.74, ^*P < 0.0001	0.26, ^*P = 0.03
Intercept	0.2 ± 0.3 GBq, P = 0.43	3.3 ± 0.6 GBq, ^*P < 0.0001	1.2 ± 1.7 GBq, ^*P = 0.48
Slope	−0.03 ± 0.02, P = 0.14	−0.33 ± 0.04, ^*P < 0.0001	0.20 ± 0.09, ^*P = 0.03

↵* P < 0.05 vs. method 2.