TABLE 1.
Summary of C. pneumoniae PBMC PCR status and its relation to characteristics of human blood donors and captive koalas
| Group and characteristic [n] | % of PCR-positive subjects |
|---|---|
| Human blood donors [60] | 16.7 |
| Age (yr) | |
| 18–34 [22] | 22.7 |
| 35–50 [25] | 8.0 |
| >50 [13] | 23.1 |
| Chlamydia serology status (IgG titer) | |
| Positive (≥1:64) [21] | 4.8 |
| Negative (≤1:32) [39] | 23.1 |
| Plasma cholesterol level (mmol/liter) | |
| Elevated (>5.5) [11] | 0 |
| Average (≤5.5) [49] | 20.4 |
| Koalas [20] | 30.0 |
| Age (yr) | |
| ≤5 [12] | 41.7 |
| 5 [8] | 12.5 |
| Chlamydia serology status | |
| Positive [12] | 25.0 |
| Negative [8] | 37.5 |
| Plasma cholesterol level (mmol/liter) | |
| High (>1.92) [8] | 12.5 |
| Low (≤1.92) [12] | 41.7 |