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Geographic distribution of Portuguese intensive care units and intensive care physicians surveyed
| Physicians | Intensive care units | |||||
| Location | Surveyed (n [%]) | Responded (n [%]) | Response rate | Surveyed (n [%]) | Responded (n [%]) | Response rate |
| North | 56 (21) | 42 (24) | 75% | 11 (21) | 10 (24) | 91% |
| Centre | 37 (14) | 16 (9) | 43% | 8 (15) | 5 (12) | 63% |
| South | 163 (61) | 108 (62) | 66% | 31 (58) | 24 (57) | 77% |
| Islands | 10 (4) | 9 (5) | 90% | 3 (6) | 3 (7) | 100% |
| Total | 266 | 175 | 66% | 53 | 42 | 79% |
