Table 5.

IgG3 concentration estimates from the exponential decay model.

	Concentration at peak (μg/ml)		Concentration at half-life (μg/ml)		Concentration at 150 days postpeak (μg/ml)		Fold decrease at 150 days postpeak
Specificity	Est.	95% CI	Est.	95% CI	Est.	95% CI	Est.	95% CI
p55 Gag	4.67	1.76–7.57	2.33	0.88–3.78	0.82	0.28–1.37	5.67	4.22–7.12
gp41 Env	1.49	0.37–2.62	0.75	0.18–1.31	0.04	0.00–0.08	36.11	11.87–60.35
p66 RT	0.03	0.02–0.05	0.0161	0.01–0.02	0.0044	0.0022–0.0065	7.35 5.	25–9.44
gp120 Env	0.05	0.00–0.10	0.03	0.0022,0.05	0.0001	0.00–0.0003	389.80	276.24–503.36
p31	0.01	0.01–0.01	0.0048	0.0027–0.0069	0.0002	0.0001–0.0003	47.97	22.5–73.43

CI, confidence interval; Est, estimate.