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Source of GERD diagnosis
| n (%) | |
| n | 2772 |
| PIN | 1935 (69.8) |
| DAD | 598 (21.6) |
| NACRS | 66 (2.4) |
| Physician claims | 134 (4.8) |
| Multiple criteria met on same day | 39 (1.4) |
DAD, discharge abstract database; GERD, gastro-oesophageal reflux disease; NACRS, National Ambulatory Care Reporting System; PIN, Pharmaceutical Information Network.
