[A survey on sex knowledge and medical demand of the cases in Kaohsiung city adolescent health clinic].

The purpose of this survey is to study the sex knowledge of adolescents, and to analyze their need in sex consultation and related health problem in Kaohsiung city. A total of 1,000 study subjects were recruited from May 1991 to May 1994. A self-administered questionnaire and medical records were used to obtain related information. The results were as follows: 1. The male to female ratio of study subjects was 1:2. Half of them were students, 44.1% had sexual experience, and the mean +/- standard deviation of age at first sex experience was 19.1 +/- 2.8 years. 2. The average percentage of correct knowledge was as low as 67.6%. It indicated an inadequacy of sex knowledge in adolescents. Females had better knowledge than males. Subjects who had graduated from senior high schools had better knowledge than those graduated from middle schools. No association was found between the score of sex knowledge and occupation. 3. 12.5% of study subjects believed that "masturbation" might cause neurasthenia, kidney malfunction and loss of memory, while 11.9% recognized that "nocturnal emission" might result in abnormal ejaculation, mental aberration and guilty feelings. Furthermore, 3.8% considered that kissing, hugging or sleeping together might cause pregnancy. 4. Most adolescents felt that "guidance on sex knowledge" was the major reason for them to visit the adolescent clinic and "obstetric and gynecological problems" was the second most important. 5. Males and females have the same prevalence of sex experience, and 50.6% of them did not practice contraception. 88.9% subjects had a high risk of getting pregnancy. 6. Males had a higher percentage of more than one heterosexual partner than females did. There was a higher percentage of people with a high education level having a fixed heterosexual partner than that of those with a low education level.