Table 4 Meta-analysis of incidence of permanent RLN palsy
Study | Total thyroidectomy | Subtotal thyroidectomy | Relative risk | 95% CI | z | p value |
|---|---|---|---|---|---|---|
Barczynski et al. 2010 [3] | 4/200 | 2/200 | 2.00 | 0.37 to 10.80 | ||
Delbridge et al. 1999 [6] | 6/1251 | 4/1838 | 2.20 | 0.62 to 7.79 | ||
Pappalardo et al. 1998 [5] | 0/69 | 1/72 | 0.35 | 0.01 to 8.39 | ||
Tezelman et al. 2009 [7] | 12/1211 | 11/1695 | 1.53 | 0.68 to 3.45 | ||
Vaiman et al. 2008 [8] | 54/3834 | 27/2238 | 1.17 | 0.74 to 1.85 | ||
Total (fixed effects) | 76/6565 | 45/6043 | 1.31 | 0.91 to 1.89 | 1.445 | 0.149 |
Total (random effects) | 76/6565 | 45/6043 | 1.32 | 0.91 to 1.90 | 1.453 | 0.146 |
Test for heterogeneity | ||||||
Q | 4.887 | |||||
DF | 4 | |||||
p value | 0.2991 | |||||
I2 (inconsistency) | 18.14% | |||||
95% CI for I2 | 0.00 to 83.97 | |||||