| Number of symptoms/risk factors | 0 | 1–3 | 4 | 5 | 6 | Total |
|---|---|---|---|---|---|---|
| All respondents | 2158 | 3765 | 521 | 355 | 148 | 6947 |
| Number invited for clinical review | 60 | 60 | 150 | 105 | 45 | 420 |
| Number who attended review (% of those invited) | 26 (43.3) | 30 (50.0) | 75 (50.0) | 53 (50.5) | 18 (40.0) | 202 (48.1) |