Table 2.

Estimates of Sensitivity by Blood Sample Volume^a

Volume	Mean Prediction	Population Response
2 mL	0.51 (0.44–0.57)	0.51 (0.30–0.78)
5 mL	0.56 (0.51–0.61)	0.56 (0.38–0.80)
7 mL	0.60 (0.54–0.65)	0.60 (0.42–0.82)
10 mL	0.65 (0.58–0.70)	0.65 (0.46–0.84)

^aThe posterior mean prediction and population response of sensitivity, as well as the corresponding 95% credible intervals, from the log-linear meta-regression model are presented for 2, 5, 7, and 10 mL of blood. The mean prediction is the sensitivity from all studies given a specific volume of blood, whereas the population response is the estimated sensitivity that can be expected from a new study that measures sensitivity with samples of a given volume.