Correction to: European Archives of Oto-Rhino-Laryngology https://doi.org/10.1007/s00405-022-07580-8

In the original publication of the article, Heterogeneity values of Table 5A, 5B was published incorrectly. The correct values are provided below,

Heterogeneity values of Table 5A is,

Heterogeneity: Tau2 = 0.25; Chi2 = 110.02, df = 11 (P < 0.00001); I2 = 90%

Test for overall effect Z = 12.91 (P < 0.00001)

Heterogeneity values of Table 5B is,

Heterogeneity: Tau2 = 0.42; Chi2 = 35.09, df = 3 (P < 0.00001); I2 = 91%

Test for overall effect Z = 6.20 (P < 0.00001)

The original article has been updated.