Table 4.
Subgroup analyses for the predictive value of MPV in SSNHL diagnosis. SMD = standard mean deviation; CI = confidence interval; NR = none reported; MPV = mean platelet volumes; SSNHL = sudden sensorineural hearing loss.
| Categories | No. of studies | SMD (95% CI) | I2 |
|---|---|---|---|
| Total | 7 | 0.03 (-0.44,0.50) | 89.6% |
| Region | |||
| Europen | 4 | −0.09 (-0.81,0.62) | 92.8% |
| Asian | 3 | 0.19 (-0.49,0.87) | 86.3% |
| Hematology analyzer | |||
| Beckman | 2 | 0.30 (-0.60,1.20) | 87.7% |
| Sysmex | 1 | −1.24 (-1.69, −0.80) | – |
| Others | 2 | 0.14 (-1.04,1.32) | 92.6% |
| NR | 2 | 0.26 (0.034,0.48) | 0% |
| sample size | |||
| >46 | 3 | −0.37 (-1.17,0.44) | 93.5% |
| ≤46 | 4 | 0.33 (-0.24,0.91) | 84.4% |