Body fat at pubertal genital stage 2: a comparison between Spanish and Mexican boys.

Background/objectives: To compare body fat mass at the same stage of pubertal maturation, genital stage 2 (G2), in a Spanish and in a Mexican sample of boys.

Subjects/methods: Data from Spain (n=177) were from a previous longitudinal clinical follow-up and data from Mexico (n=91) from a cross-sectional study. Subjects were grouped according to the presence of G2 at similar ages.

Onset of puberty at eight years of age in girls determines a specific tempo of puberty but does not affect adult height.

Aims: To analyse the effect of early puberty (onset between 7.5 and 8.5 y) on pubertal growth and adult height in girls, and the implications of this effect for the age limit for normal onset of puberty.

Yoghurt in the Spanish diet: nutritional implications and socio-cultural aspects of its consumption.

Objectives: This study aims to analyse the differences, with regard to socio-cultural characteristics and dietary habits, between low and high consumers of yoghurt and other fermented dairy product desserts, and the nutritional significance of these differences.

Methods: We analysed the diet of a healthy population (4-65 years), using the 24-hour recall method, on three non-consecutive days. The participants were grouped by age and sex and were also divided into tertiles on the basis of yoghurt consumption.

The contribution of foods to the dietary lipid profile of a Spanish population.

Objective: To identify the food that has the greatest effect on the variation in the percentage of energy intake derived from fat and saturated fatty acids for the consumption of a Spanish population.

Design: A cross-sectional study of food consumption, using the 24-hour recall method for three non-consecutive days, one of which was a non-working day. Subjects were interviewed by trained interviewers in the subjects' homes.

Predictors of depression at eighteen. A 7-year follow-up study in a Spanish nonclinical population.

This study prospectively examined predicting factors and depressive antecedents of depression in early adulthood and determined differences by sex. 199 adolescents aged 11-12 from the general community were followed up annually for 4 years and reassessed at 18 years of age. Sociodemographic data, depressive symptomatology, anxiety level, personality dimensions, self-esteem, academic aptitude and pubertal development were reported throughout this period and tested as possible risk variables of depression.