Durante la epidemia de cólera que afectó a Perú en 1991, la población urbana presentó las mayores tasas de ataque y las más bajas de letalidad. Con el propósito de establecer si el uso doméstico de Sales de Rehydration Oral podría explicar tal fenómeno, se desarrolló un estudio caso-control entre pacientes con cólera, registrados en el Hospital Regional de la ciudad de Piura. Los resultados no ofrecen evidencia a favor de la hipótesis citada e indican más bien que la letalidad por cólera estuvo asociada con el grado de deshidratación l momento de la admisión hospitalaria.

This paper presents the results on four tests of students from fourth and fifth grade of eight urban and rural elementary schools. Four of the schools were located in rural Huaraz, two were urban public schools (one in Huaraz and one in Lima), one was a parochial school and one was a privare school (these last two in Lima). The tests measured cognitive processes (coding from the WISC-R) and achievement (reading comprehension, vocabulary and arithmetic). The results favored urban over rural students. Among the urban, the highest scores were for the students of the privare and parochial schools. Girls scored significandy less than men in sorne of the rural schools. Overall, more than gender differences, the results showed a significandy poorer performance for the rural students.

El artículo no presenta resumen.

El artículo no presenta resumen.

This paper presents the results on four tests of students from fourth and fifth grade of eight urban and rural elementary schools. Four of the schools were located in rural Huaraz, two were urban public schools (one in Huaraz and one in Lima), one was a parochial school and one was a privare school (these last two in Lima). The tests measured cognitive processes (coding from the WISC-R) and achievement (reading comprehension, vocabulary and arithmetic). The results favored urban over rural students. Among the urban, the highest scores were for the students of the privare and parochial schools. Girls scored significandy less than men in sorne of the rural schools. Overall, more than gender differences, the results showed a significandy poorer performance for the rural students.

El artículo no presenta resumen.