TABLE 6

Multivariable Regression for Number of Lymph Nodes Removed for Each Coefficient

Coefficient	Effect	SE	Lower 95% limit	Upper 95% limit	P
Baseline	1.03	0.095	0.84	1.22	<0.0001
Unit dose	0.17	0.07	0.03	0.31	0.013
Heating method	−0.003	0.094	−0.19	0.18	0.98
Time difference	−0.01	0.02	−0.05	0.03	0.76
Location in breast tissue for ^99mTc-sulfur colloid administration
IMZ-LIQ	−0.038	0.099	−0.23	0.16	0.71
IMZ-LMZ	0.25	0.1	0.05	0.45	0.013
IMZ-LOQ	0.035	0.088	−0.14	0.21	0.69
IMZ-OMZ	0.063	0.078	−0.09	0.22	0.42
IMZ-UIQ	−0.0004	0.078	−0.15	0.15	1
IMZ-UMZ	0.044	0.077	−0.11	0.19	0.57
IMZ-UOQ	0.026	0.071	−0.11	0.17	0.71
Unit dose: heating method	−0.15	0.1	−0.35	0.05	0.13

IMZ = inner mid zone; LIQ = lower inner quadrant; LMZ = lower mid zone; LOQ = lower outer quadrant; OMZ = outer mid zone; UIQ = upper inner quadrant; UMZ = upper mid zone; UOQ = upper outer quadrant.