Table 2 The possible sources of publication bias. OR odds ratio
From: Publication bias in otorhinolaryngology meta-analyses in 2021
Factor | Risk for publication bias | OR | p Value | ||
|---|---|---|---|---|---|
High risk | Low risk | ||||
Language restriction | Only English | 12 | 20 | 1.35 | 0.899 |
Other languages too | 4 | 9 | |||
Sources other than bibliographic databases (citation searching not included) | Searched | 3 | 6 | 0.83 | 0.922 |
Not searched | 15 | 25 | |||
Sources other than bibliographic databases (citation searching included) | Searched | 13 | 22 | 1.06 | 0.976 |
Not searched | 5 | 9 | |||
Number of databases searched | Mean (SD) | 3.72 (0.89) | 3.84 (1.13) | - | 0.692 |