1962 | Birmingham (RCGP)10 | 18532 | 0.64 | | 0.69 | 1 |
1968 | Edinburgh11 | 468000 | 0.63 | | | 2–4 |
1972/4 | Whickham (age over 18)12 | 2779 | 0.8 | | | 1 |
1973 | Whitehall (males, 40–64 y)13 | 18403 | 0.9 | | 0.3 | 1 |
1982 | Oxford14 | 40079 | 1.08 | 1.04 | | 1, 2 |
1983/4 | Poole15 | 90568 | 1.01 | 0.97 | | 3–6 |
1984 | Southall (white only)16 | 27075 | 1.20 | 1.05 | | 1, 3 |
1985 | Islington (age over 40)17 | 1040 | 2.1 | | 2.6 | 1 |
| (all ages) | 3485 | 1.6 | | | 1 |
1987 | Melton Mowbray (over 65)18 | 861 | 6.0 | | 3.3 | 1 |
1988 | Powys/Gwent19 | 46400 | 1.01 | | | 4, 5 |
1988/9 | Poole20 | 97122 | 1.18 | 1.05 | | 3–6 |
1988/9 | Trowbridge21 | 31000 | 1.31 | 1.26 | | 2–4 |
| (age over 65) | | 4.6 | | | 2–4 |
1990/2 | Isle of Ely (age 40–65)22 | 1122 | | | 4.5 | 1 |
1992 | Manchester23 | 285033 | 1.21 | | | 4 |
1992/3 | Bristol24 | 71599 | 1.23–2.14 | 1.31–2.51 | | 4 |
1993 | Tunbridge Wells25 | 230000 | 1.18 | | | 4 |
1993 | RCGP26 | 353977 | 1.6 | | | 4 |
1996 | Poole27 | 256130 | 1.61 | | | 4 |
1996 | Poole20 | 86287 | 1.86 | 1.55 | | 3–6 |
1996 | Tayside4 | 391274 | 1.94 | | | 2–7 |
1996 | Cardiff5 | 386988 | 2.3 | | | 2–4 |
1998 | North Wales (all ages) | 418200 | 2.46 | 2.29 | | 2–4 |
| (age over 40) | 201890 | 3.8 | | | 2–4 |
| (age over 65) | 75110 | 7.0 | | | 2–4 |