Table 5.
Local progression rates for 90 treated lesions, according to the SRS dose prescribed.
| Dose group | Local Progression | Total | ||
|---|---|---|---|---|
| No | Yes | |||
| 12–16 Gy/1 fx | Count | 17 | 21 | 38 |
| % within dose group | 44.7% | 55.3% | 100.0% | |
| 18–20 Gy/1 fx | Count | 27 | 10 | 37 |
| % within dose group | 73.0% | 27.0% | 100.0% | |
| 22 Gy/1 fx | Count | 9 | 1 | 10 |
| % within dose group | 90% | 10% | 100.0% | |
| 24–30/3–5 fx | Count | 2 | 3 | 5 |
| % within dose group | 40.0% | 60.0% | 100.0% | |
| Total | Count | 55 | 35 | 90 |
| % within dose group | 61% | 39% | 100.0% | |
Lesions for which the response was not known were excluded.
Chi-square test not valid because of small numbers in some cells.