Table 3.
Room |
||||
ARA 154 (Controls) | ARA A | ARA B | ARA D | |
Pretreatment | ||||
Sample size | 12 | 24 | 21 | 42 |
Mean ± SE | 21.8 ± 6.0 | 3.7 ± 0.7 | 1.8 ± 0.7 | 10.8 ± 1.8 |
95% Confidence interval | 8.7–34.9 | 2.2–5.2 | 0.4–3.2 | 7.1–14.5 |
Median | 12.9 | 3.4 | 0.2 | 5.4 |
Range | 1.4–57.8 | 0.0–12.2 | 0.0–13.0 | 0.0–38.2 |
Posttreatment | ||||
Sample size | 36 | 64 | 56 | 112 |
Mean ± SE | 11.1 ± 1.6 | 0.003 ± 0.003 | 0.0 ± 0.0 | 0.8 ± 0.6 |
95% Confidence interval | 7.9–14.2 | 0.003–0.009 | 0.0–0.0 | (−)0.02–0.18 |
Median | 7.6 | 0.0 | 0.0 | 0.0 |
Range | 1.8–38.2 | 0.0–0.2 | 0.0–0.0 | 0.0–6.2 |
% Reduction | 49.1 | 99.9 | 100.0 | 92.6 |