TABLE 2.
Demographic data arranged by cluster
| Parameter |
opa-1 cluster (n = 49)
|
opa-4 cluster (n = 63)
|
All other clusters and unique opa types
|
|||
|---|---|---|---|---|---|---|
| Male (n = 17) | Female (n = 32) | Male (n = 26) | Female (n = 37) | Male (n = 94) | Female (n = 61) | |
| Ethnic group (no.) | ||||||
| White | 8 | 25 | 6 | 34 | 53 | 52 |
| Black | 9 | 6 | 19 | 1 | 18 | 6 |
| Other | 0 | 1 | 1 | 2 | 3 | 3 |
| Postal code | ||||||
| Central Sheffield | 13 | 24 | 20 | 34 | 52 | 46 |
| Outer Sheffield | 4 | 6 | 6 | 3 | 42 | 15 |
| Age (yr) | ||||||
| Mean (SD) | 25.4 (5.3) | 19.6 (3.5) | 25.3 (7.7) | 23.1 (5.7) | 27.1 (7.1) | 23.9 (7.1) |
| Range (yr) | 15-36 | 15-28 | 17-49 | 16-36 | 15-45 | 15-47 |
| Median no. of reported contacts (range) | 2 (0-8) | 1 (0-3) | 2 (0-4) | 1 (0-34) | 1 (1-26) | 1 (1-22) |
| No. of screened contacts/no. of unscreened contacts | 19/27 | 26/14 | 26/18 | 37/71 | 86/114 | 66/117 |