Table 2. Subgroup analysis about effect of statin therapy on mean platelet volume.
| Subgroup | Standard mean difference (95% CI) | Heterogeneity | ||
|---|---|---|---|---|
| I2 (%) | P-value | |||
| Drug type | Atorvastatin | −0.52 (−0.94, −0.10) | 87 | <0.00001 |
| Rosuvastatin | −0.22 (−0.40, −0.03) | 9 | = 0.33 | |
| Follow-up | ≥12 week | −0.34 (−0.69, −0.02) | 90 | <0.00001 |
| <12 week | −0.61 (−0.95, −0.26) | 84 | <0.00001 | |
| Sample size | ≥100 | −0.43 (−0.85, −0.01) | 94 | <0.00001 |
| <100 | −0.49 (−0.78, −0.20) | 77 | <0.0001 | |
| Ethnicity | Asian | −1.04 (−1.22, −0.85) | 0 | = 0.663 |
| Caucasian | −0.26 (−0.44, −0.08) | 68.4 | = 0.001 | |
| Mean age | ≥55 years | −0.06 (−0.18, 0.06) | 0 | 0.675 |
| <55 years | −0.66 (−0.94, −0.38) | 64.5 | = 0.015 | |
| NOS score | ≥7 | −0.21 (−0.37, −0.05) | 48.5 | 0.084 |
| <7 | −0.67 (−1.23, −0.11) | 84.5 | 0.000 | |