In cases where a country received an insufficient survey response, the projection base included respondents from the country’s continent. A weighting system was employed to emphasize responses from the particular country. Caution is urged when comparing against prior years, because studies such as this can experience substantial variances within specific procedures. In addition, the overall methodology was slightly modified and National Societies from several countries materially restated their estimated number of plastic surgeons for 2010. Figures for 2009 were not recomputed. .
