Table 3.

Variability of HIV-Specific T Cell Responses Measured Weekly Was Not Associated with Assay Covariates

Weekly		CTLA+B Z Scores of Within-Individual Variability			Raw CTLA+B Measurements
Variable	Range	Kendall’s Tau Estimate	95% LCL	95% UCL	Kendall’s Tau Estimate	95% LCL	95% UCL
No. of measures over time	4–8	0.00	−0.01	0.01	0.02	−0.45	0.49
Days between visit and thaw	0–322	0.09	−0.01	0.19	−0.02	−0.34	0.29
Days since first measurement	0–76	0.08	−0.01	0.16	0.30	−0.08	0.67
CV between independent cell counts (n = 3)	0.60–19.14	−0.02	−0.19	0.16	−0.11	−0.27	0.05
Total cell count (×106)	3.23–17.43	0.04	−0.06	0.15	−0.02	−0.23	0.19
Average viable cell count (/mL)	0.87–5.40	0.02	−0.05	0.09	−0.15	−0.49	0.20
% PBMC recovery	32.37–143.50	0.08	−0.06	0.22	−0.08	−0.24	0.09