Repeat LCR testing and PCR testing of initially positive LCR urines during the Wirral Chlamydia Pilot (Sept 1999 to Oct 2000, baseline) and for 3 month periods since the issue of the device correction (February 2001)
| No of urines | PCR+ | PCR+/− | PCR− | PCR (a) | PCR (b) | |
|---|---|---|---|---|---|---|
| (a) Inhibitory, (b) insufficient. | ||||||
| Initial LCR positive (Sep 99–Oct 00) | 960 | |||||
| Repeat LCR: | ||||||
| Positive | 883 (92%) | ***** | Not done | **** | ||
| Equivocal (0.5–0.99) | 12 (1.3%) | 6 | 6 | |||
| Negative | 65 (6.8%) | 13 | 50 | 2 | ||
| Initial LCR positive (Mar–May 01) | 134 | |||||
| Repeat LCR: | ||||||
| Positive | 74 (55%) | 70 | 1 | 3 | ||
| Equivocal (0.5–0.99) | 18 | 5 | 15 | |||
| Negative | 42 (31%) | 6 | 36 | |||
| Initial LCR positive (Jun–Aug 01) | 121 | |||||
| Repeat LCR: | ||||||
| Positive | 95 (79%) | 90 | 3 | 2 | ||
| Equivocal (0.5–0.99) | 2 (1.7%) | 2 | ||||
| Negative | 24 (19.8%) | 5 | 19 | |||
| Initial LCR positive (Sep–Nov 01) | 90 | |||||
| Repeat LCR: | ||||||
| Positive | 87 (96.6%) | 82 | 3 | 1 | 1 | |
| Equivocal (0.5–0.99) | 1 (1.1%) | 1 | ||||
| Negative | 2 (2.2%) | 2 | ||||