Table 1.

Estimated Bias and Limits of Agreement, with 95% Confidence Intervals for Percentage CD4 Cell Counts (%CD4/lymphocyte) Determined by Blantyre Count and Panleucogate Assays on 113 Venous Blood Samples from HIV-Seropositive Malawian Children. Overall Values and Values for Each Laboratory Technician Are Given

				Limits of agreement
	Samples	Bias	95% Confidence interval	Lower limit	95% Confidence interval	Upper limit	95% Confidence interval
Overall	113	−0.13	(−0.37 to 0.11)	−2.69	(−3.11 to −2.27)	2.43	(2.01 to 2.85)
Technician 1	67	−0.17	(−0.46 to 0.12)	−2.48	(−2.98 to −1.98)	2.14	(1.64 to 2.64)
Technician 2	46	−0.07	(−0.51 to 0.37)	−2.98	(−3.74 to −2.21)	2.83	(2.07 to 3.59)