Table 3. Incidence of radiation pneumonitis by treatment groups.
| Total patients (n=722) No. (%) |
IMNI (n=356) No. (%) |
Non-IMNI (n=366) No. (%) |
|
|---|---|---|---|
| No RP | 687 (95.2) | 333 (93.5) | 354 (96.7) |
| RP | 35 (4.8) | 23 (6.5) | 12 (3.3) |
| G1 | 26 (3.6) | 14 (3.9) | 12 (3.3) |
| G2 | 9 (1.2) | 9 (2.5) | 0 |
| G3 or higher | 0 | 0 | 0 |
IMNI=internal mammary node irradiation; RP=radiation pneumonitis.