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Positive and negative predictive values of the ratings at month 3 in the prediction of the ratings at month 12
| Placebo group(n = 103) | ||||
| 12M worsened/non-worsened | ||||
| Worsened | Non-worsened | |||
| Worsened | 31 (86.1%) | 5 (13.9%) | 36 | |
| 3M worsened/non-worsened | ||||
| Non-worsened | 33 (49.2%) | 34 (50.8%) | 67 | |
| 64 | 39 | 103 | ||
| Pirfenidone(high + low-dose) group (n = 158) | ||||
| 12M worsened/non-worsened | ||||
| Worsened | Non-worsened | |||
| Worsened | 27 (87.1%) | 4 (12.9%) | 31 | |
| 3M worsened/non-worsened | ||||
| Non-worsened | 36 (28.4%) | 91 (71.7%) | 127 | |
| 63 | 95 | 158 | ||
