Abstract

LEJARRAGA, Horacio; KELMANSKY, Diana M; MASAUTIS, Alicia  and  NUNES, Fernando. Psychomotor development index in children younger than 6 years from Argentine provinces. Arch. argent. pediatr. [online]. 2018, vol.116, n.2, pp.e251-e256. ISSN 0325-0075.  http://dx.doi.org/10.5546/aap.2018.e251.

Objective. To obtain a psychomotor development index (PDI) for each Argentine province. Population and methods. Using a national, probabilistic, and stratified sample of 13 323 male and female children younger than 6 years selected for the National Survey on Nutrition and Health (Encuesta Nacional de Nutrición y Salud, ENNyS 2004), we estimated the PDI per province based on compliance with 10 developmental milestones. The median age at attainment (median age) of each milestone was estimated adjusting a logistic regression. The PDI was estimated as 100* (1 + b), where "b" is the regression coefficient of y= a + b x, where "y" is the median age as per the national reference (x) minus the median age at attainment of a milestone. The theoretical value expected for the PDI was 100. Results. The PDI per province ranged between 72.1 and 106.4. Most provinces showed a negative regression coefficient, which indicated a progressive increase of the delay in the age at attainment of milestones. The correlation coefficient between the PDI per province and infant mortality in 2005was extremely high: -0.85, suggesting that both indicators share similar biological and social determinants. The PDI was negative because the higher the mortality, the lower the PDI. Conclusion. We have now a positive health indicator available in Argentina: the psychomotor development index, which is a low-cost, easy to collect, and reliable tool that may be used in national health statistics.

Keywords : Psychomotor development; Developmental tempo; Environment.