Table 3.
Cornell voltage characteristics
| Total | |||
|---|---|---|---|
| N | Mean (SD) | Range | |
| Baseline | 26,384 | 14.74 (6.53) | |
| Q1 | 7,165 | 7.51 (2.23) | 0–10 |
| Q2 | 6,838 | 12.51 (1.11) | 11–14 |
| Q3 | 5,819 | 16.39 (1.11) | 15–18 |
| Q4 | 6,562 | 23.48 (4.76) | 19–64 |
| Year 2 | 18,762 | 14.39 (6.43) | |
| Q1 | 5,370 | 7.37 (2.27) | 0–10 |
| Q2 | 4,935 | 12.49 (1.11) | 11–14 |
| Q3 | 4,107 | 16.39 (1.12) | 15–18 |
| Q4 | 4,350 | 23.30 (4.65) | 19–63 |
| Difference from baseline | 18,751 | −0.15 (4.84) | |
| Cornell voltage Yes | 1,080 | 4.67 (7.64) | |
| Cornell voltage No | 17,671 | −0.44 (4.44) | |
| Year 4 | 15,913 | 14.51 (6.63) | |
| Q1 | 4,646 | 7.38 (2.33) | 0–10 |
| Q2 | 4,019 | 12.51 (1.10) | 11–14 |
| Q3 | 3,366 | 16.40 (1.12) | 15–18 |
| Q4 | 3,882 | 23.47 (4.81) | 19–61 |
| Difference from baseline | 15,903 | −0.02 (5.28) | |
| Cornell voltage Yes | 1,023 | 6.05 (7.76) | |
| Cornell voltage No | 14,880 | −0.44 (4.79) | |
| Year 6 | 5,324 | 14.67 (6.92) | |
| Q1 | 1,560 | 7.31 (2.34) | 0–10 |
| Q2 | 1,308 | 12.53 (1.11) | 11–14 |
| Q3 | 1,132 | 16.44 (1.12) | 15–18 |
| Q4 | 1,324 | 25.93 (5.20) | 19–51 |
| Difference from baseline | 5,319 | −0.04 (5.78) | |
| Cornell voltage Yes | 375 | 7.03 (8.40) | |
| Cornell voltage No | 4,944 | −0.57 (5.16) | |