Table 3:
Meta-analysis results for prevalence of each mycoplasma species in included studies
| Mycoplasma species* | Number of studies | Sex | Prevalence rate (%) (95% CI) | Heterogeneity test | Begg’s test ***P-value (two-tailed) | Egger’s test **** P-value (two-tailed) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Pooled ** (range) | ||||||||
| a | b | |||||||||
| I2 (%) | P-value | |||||||||
| M. genitalium | 5 | M | 2.0 | 37.8 | 10.7 (4.6–22.9) | 90.6 | <0.001 | 1.0 | 1.0 | 0.4 |
| 6 | F | 2.0 | 22.7 | 6.2 (3.1–11.8) | 81.6 | <0.001 | 0.9 | 1.0 | 0.5 | |
| M. hominis | 5 | M | 3.0 | 22.4 | 15.3 (10.6–21.7) | 70.4 | 0.009 | 0.3 | 0.5 | 0.2 |
| 11 | F | 2.9 | 27.2 | 12.2 (8.8–16.8) | 89.5 | <0.001 | 0.4 | 0.4 | 0.04 | |
| U. urealyticum | 6 | M | 5.0 | 40.5 | 11.5 (4.9–25) | 96.1 | <0.001 | 0.06 | 0.02 | 0.009 |
| 10 | F | 7.7 | 44.3 | 18.9 (12.7–27.2) | 95.0 | <0.001 | 0.3 | 0.4 | 0.1 | |
| All species | 17 | M | 2.0 | 40.5 | 11.1 (7.4–16.4) | 92.4 | <0.001 | 0.01 | 0.02 | <0.001 |
| 27 | F | 2.0 | 44.3 | 12.8 (9.8–16.5) | 93.3 | <0.001 | 0.009 | 0.009 | <0.001 | |
M: male; F: female; Min: minimum; Max: maximum; a: Kendall’s tau without continuity correction; b: Kendall’s tau with continuity correction.
*
There was only one article studied the prevalence of U. parvum and reported its prevalence to be 2% and 3% in fertile and infertile men, respectively;
**
Pooled prevalence (based on random effects);
***
Begg and Mazumdar rank correlation;
****
Egger’s regression intercept.