Table 3.
Study omitted | SMD (95% CI) | P for heterogeneity | I2 |
---|---|---|---|
Lam et al. | 1.08 (0.74–1.42) | 0.10 | 53% |
Tan et al. | 1.08 (0.68–1.47) | 0.11 | 51% |
Ji et al. | 0.83 (0.64–1.02) | 0.38 | 2% |
Xue and Lin | 0.95 (0.61–1.28) | 0.07 | 58% |
Kotani et al. | 0.97 (0.64–1.31) | 0.05 | 62% |
SMD, standardized mean difference; CI, confidence interval; AGEs, advanced glycation end products; OSAHS, obstructive sleep apnea–hypopnea syndrome