A study is carried out to assess the relevance of introducing a module on sexuality education in a school in male adolescents between 14 and 15 years of age to delay the initiation of sexual relations. For this, a population of 2300 male schoolchildren is intervened, of whom 30% have already started their sexual relations, so it is decided to work with 70% of them. At the end of the module, the beginning of sexual relations between those who received the module and a population of 1000 schoolchildren who did not receive the module is evaluated a year later, finding that of those who received module 120 began sexual relations and of those who did not. Module 150 began to have sexual intercourse during the evaluation time. Is there a relationship between having completed the module and delaying the start of SR? Make the pertinent ones and interpret the results.

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