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| Pack years | Pack years not known | Grand total | |||||
|---|---|---|---|---|---|---|---|
| 0 | <20 | 20–40 | 40–60 | >60 | |||
| AMD type | |||||||
| Neovascular | 229 (81%) | 154 (83%) | 91 (83%) | 45 (79%) | 40 (77%) | 19 (76%) | 578 |
| Non‐neovascular | 52 (19%) | 32 (17%) | 19 (17%) | 12 (21%) | 12 (23%) | 6 (24%) | 133 |
| Total with late AMD | 281 | 186 | 110 | 57 | 52 | 25 | 711 |
χ2 test for trend = 0.465, df = 1, p = 0.5 NS.
