Goodman KJ, Correa P, Mera R, et al. Effect of Helicobacter pylori Infection on Growth Velocity of School-age Andean Children. Epidemiology. 2011;22:118-126.
The labels for father's education in Table 1 should be:
0-4 (incomplete primary)
5 (complete primary)
6-10 (incomplete secondary)
11-17 (complete secondary or higher)