“…Subgroup analysis by age of subject, follow-up time, and adenoidectomy technique (curette versus cautery) was planned a priori but the small sample size and similar age and follow-up time precluded this type of analysis. Given three of the ten articles were published by the same author(s) [7,10,11], there was concern for a possible author bias that could have effected the results. The studies by Ramadan et al each reported a success rate for adenoidectomy that was considerably lower than most of the other studies.…”