Table 2. Number of observations and power for analysis for the critical value of 0.2 of Pearson correlation after restricting the range for glaucomatous eyes.
Since range restriction yields different number of eyes and subjects in each sector, the values reported here are the minimum sample sizes and power over all sectors.
| Healthy eyes | Glaucomatous eyes | |||
|---|---|---|---|---|
| Number of eyes | Power | Number of eyes | Power | |
| RA vs SAP MS | 623 | 1.00 | 212 | 0.84 |
| RA vs SAP MD | 623 | 1.00 | 201 | 0.82 |
| RA vs SWAP MS | 426 | 0.99 | 197 | 0.81 |
| RA vs SWAP MD | 428 | 0.99 | 189 | 0.79 |
| RA vs FDP MS | 616 | 1.00 | 213 | 0.84 |
| RNFLT vs SAP MS and MD | 181 | 0.77 | 129 | 0.63 |
| RNFLT vs SAP MD | 180 | 0.77 | 127 | 0.62 |
| RNFLT vs FDP MS | 161 | 0.72 | 118 | 0.59 |