Study groups | Primary screen diagnosis J84.1 | No of reviewed medical records | No of patients with IPF confirmed by evaluation | No of patients with IPF confirmed by extrapolation† | Total no of IPF patients in 3 study groups |
---|---|---|---|---|---|
*Range of variation between lowest and highest observed percentage shown in bold; †number of patients with diagnosis J84.1 corrected with the number of confirmed IPF diagnoses by evaluation. | |||||
Group 1 | |||||
University 1 | 75 | 40 | 21 (53%) | 39 | |
University 2 | 57 | 31 | 21 (68%) | 39 | |
University 3 | 241 | 107 | 53 (50%) | 120 | |
University 4 | 122 | 62 | 35 (56%) | 69 | |
University 5 | 155 | 72 | 48 (67%) | 103 | |
Central 1 | 99 | 39 | 21 (54%) | 54 | |
Central 2 | 154 | 81 | 40 (49%) | 76 | |
Regional 1 | 35 | 35 | 27 (77%) | 27 | |
Total | 938 | 467 | – | 527 | 527 |
Group 2 | |||||
5 centres | Not known | All | 113 | – | 113 |
Group 3 | |||||
16 centres | 394 | None | (49–77%)* | 193–303 | 193–303 |
Total | – | – | – | – | 833–943 |