“…Twelve were performed in highincome countries (11 in Europe 32,33,34,35,36,37,38,39,40,42,43 and one in New Zealand 41 ) and one in China 26 . Three British articles 33,36,37 used data from the same cohort; two Finnish articles 34,35 likewise analyzed the same cohort; and two Spanish articles 38,39 used data from the same cross-sectional study, evaluating the outcome differently (continuous or categorical variable) or in distinct moments of life.…”