The results indicate that the presence of a birefringent spindle in human oocytes can predict not only higher fertilization rate, but also higher embryo developmental competence.
This study aimed to identify the prevalence and associations of childhood psychiatric disorder in Calicut District, South India. Among 1403 children aged 8 to 12 years selected by random cluster sampling, a projected prevalence of 9.4% (95% CI 7.9-10.8%) was found. Associations of disorder with male sex, the Muslim religion, lower social class, less parental education, school failure, and impaired reading and vocabulary were found, but not with malnutrition or perinatal problems. The similarity to associations of disorder in Western studies was noted. The discussion focuses on the validity of comparisons of prevalence across cultures.
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