Location | Age | Ciliated metaplasia/patients ⩾60 years of age | ||||
---|---|---|---|---|---|---|
⩽39 | 40–49 | 50–59 | 60–69 | ⩾70 | ||
New York | 1 | 3 | 7 | 6 | 13/17 | |
London | 3 | 4 | 7/7 | |||
Reykjavik | 1 | 3 | 7 | 9 | 12 | 21/32 |
Florence | 10 | 15 | 10 | 25/35 | ||
Mexico City | 1 | 0/1 | ||||
Buenos Aires | 3 | 2 | 5/5 | |||
Boston | 1 | 1/1 | ||||
Stockholm | 1 | 2 | 4 | 6/7 | ||
Total | 1 | 4 | 22 | 39 | 39 | 78/105 (74%) |