Table 2.
Prevalence of viral infections in the total APO control population and the non‐CP APO control population, expressed as percentage positive of the total tested*
| Virus | All APO comparison group | Non‐CP APO comparison group | ||
|---|---|---|---|---|
| Positive/total | Prevalence % (95% CI) | Positive/total | Prevalence % (95% CI) | |
| Herpes PCR group B | 41/480 | 8.5 (6.2–11.4) | 26/362 | 7.2 (4.7–10.3) |
| Herpes PCR group A | 167/587 | 28.5 (24.8–32.3) | 120/441 | 27.2 (23.1–31.6) |
| CMV | 147/587 | 25.0 (21.6–28.8) | 104/441 | 23.6 (19.7–27.8) |
| HSV | 25/587 | 4.3 (2.8–6.2) | 20/441 | 4.5 (2.8–6.9) |
| Enterovirus | 19/585 | 3.4 (2.0–5.2) | 14/442 | 3.2 (1.7–5.3) |
| Any herpesvirus | 191/502 | 38.0 (33.8–42.5) | 136/380 | 35.8 (31.0–40.8) |
| Any virus | 203/503 | 40.4 (36.0–44.8) | 145/382 | 38.0 (33.1–43.0) |
*
No significant differences were observed between the two control populations. Not all samples had a valid test result for all viruses, therefore the total number of samples included in analyses may be less than the total number of cases and controls available for study.