Absolute and relative increase in signal intensity ratios for the high-exposure cohorta
| Δ Week –4 to Year 1 | P Value | Δ Year 1 to Year 2 | P Value | Δ Week –4 to Year 2 | P Value | |
|---|---|---|---|---|---|---|
| L. DN | 0.04 ± 0.09 (4%) | <.001 | 0.01 ± 0.09 (1%) | NS | 0.05 ± 0.09 (5%) | <.001 |
| L. GP | 0.05 ± 0.09 (5%) | <.001 | −0.02 ± 0.11 (−1%) | NS | 0.03 ± 0.10 (3%) | .005 |
| L. CD | 0.03 ± 0.08 (3%) | <.001 | 0 ± 0.11 (0%) | NS | 0.03 ± 0.09 (3%) | .005 |
| L. TH | 0.03 ± 0.09 (3%) | .01 | 0 ± 0.11 (0%) | NS | 0.03 ± 0.09 (3%) | .01 |
Note:—L. indicates left; NS, not significant.
↵a Data are absolute (mean ± SD) and relative (%) increases.