Table 4.
Sensitivity analyses of included studies. Abbreviations: CI = confidence interval, dB = decibels, RR = relative risk.
| One-study-out method | RR from the remaining studies (95% CI) | P heterogeneity | I 2 |
|---|---|---|---|
| Moderate/severe hearing impairment (follow-up ≤6 years) | |||
| Gates GA, 1996 | 1.35 (1.08, 1.69) | 0.74 | 0% |
| Hong T, 2016 | 1.23 (0.87, 1.73) | 0.22 | 34% |
| Lin FR, 2013 | 0.92 (0.52, 1.62) | 0.87 | 0% |
| Per 10 dB of hearing loss | |||
| Deal JA, 2017 | 1.14 (0.98, 1.33) | 0.08 | 68% |
| Lin FR, 2011 | 1.09 (1.03, 1.15) | 0.32 | 1% |
| Lin FR, 2013 | 1.17 (1.07, 1.28) | 0.31 | 4% |
| Wearing hearing aids | |||
| Deal JA, 2017 | 0.86 (0.63, 1.15) | 0.63 | 0% |
| Lin FR, 2011 | 0.83 (0.62, 1.10) | 0.94 | 0% |
| Lin FR, 2013 | 0.89 (0.61, 1.31) | 0.72 | 0% |