Table 4.
The absolute and normalized slopes for retinal nerve fiber layer thickness over ages in different sectors, with absolute slope 95% confidence interval and p value.
| Absolute slope (μm/year) | Confidence Interval | p value* | Normalized Slope | |
|---|---|---|---|---|
| Overall | -0.2552 | -0.4391 - -0.0712 | 0.01 | -0.0025 |
| Superior | -0.3452 | -0.5291 - -0.1612 | <0.001 | -0.0028 |
| Inferior | -0.3606 | -0.5446 - -0.1767 | <0.001 | -0.0029 |
| Temporal | -0.0687 | -0.2527 - 0.1152 | 0.46 | -0.0010 |
| Nasal | -0.2457 | -0.4297 - -0.0617 | 0.01 | -0.0030 |
| 1 o'clock | -0.4464 | -0.6304 - -0.2625 | <0.001 | -0.0039 |
| 2 o'clock | -0.3616 | -0.5455 - -0.1776 | <0.001 | -0.0038 |
| 3 o'clock | -0.1846 | -0.3686 - -0.0007 | 0.05 | -0.0028 |
| 4 o'clock | -0.1866 | -0.3706 - -0.0027 | 0.05 | -0.0024 |
| 5 o'clock | -0.3856 | -0.5696 - -0.2017 | <0.001 | -0.0035 |
| 6 o'clock | -0.3868 | -0.5707 - -0.2028 | <0.001 | -0.0028 |
| 7 o'clock | -0.3108 | -0.4948 - -0.1268 | 0.001 | -0.0023 |
| 8 o'clock | -0.1066 | -0.2905 - 0.0774 | 0.25 | -0.0015 |
| 9 o'clock | -0.0359 | -0.2198 - 0.1481 | 0.70 | -0.0007 |
| 10 o'clock | -0.0662 | -0.2501 - 0.1178 | 0.48 | -0.0008 |
| 11 o'clock | -0.2311 | -0.4151 - -0.0471 | 0.01 | -0.0017 |
| 12 o'clock | -0.3636 | -0.5476 - -0.1797 | <0.001 | -0.0029 |
*
P value for an absolute slope difference from a zero slope.