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Results of treatment site-specific lower control limits
| Treatment type | Treatment site | Number of plans or patients | Number of fields | Average cumulative χ pass-rate (%) (μ) | Lower control limit (%) (μ-3σ) |
|---|---|---|---|---|---|
| IMRT | Prostate | 82 | 1055 | 89.1 | 75.6 |
| IMRT | Head and Neck | 37 | 486 | 84.0 | 71.3 |
| IMRT | Rectum | 18 | 259 | 80.9 | 71.1 |
