Biomaterial Database

Age at first experience of intercourse among Norwegian adolescents: a lifestyle perspective. 1991

P Kraft

Department of Epidemiology, National Institute of Public Health, Oslo, Norway.

Age at first intercourse among Norwegian adolescents was studied by means of survival analysis. The data stemmed from a nation-wide survey of 3000 Norwegian adolescents aged 17-19, yielding a response rate of 61.8%. Median age at first intercourse was 17.3 years among girls and 18.0 years among boys. By means of Cox regression analysis associations between age at onset of intercourse and some correlates were estimated. Age at first intercourse was significantly associated with educational aspirations, smoking behaviour, alcohol consumption, peer affiliation, and frequency of visiting a discotheque. These inter-relationships confirm that age at onset of intercourse comprise an important indicator of the lifestyle of an individual. In order to influence sexual behaviour of adolescents it may thus be appropriate to employ health promotion activities focusing upon environmental and structural factors, as a supplement to traditional methods of sex education.

UI	MeSH Term	Description	Entries
D007398	Interpersonal Relations	The reciprocal interaction of two or more persons.	Social Relationships,Husband-Wife Communication,Partner Communication,Communication, Husband-Wife,Communication, Partner,Husband Wife Communication,Husband-Wife Communications,Interpersonal Relation,Partner Communications,Relation, Interpersonal,Relationship, Social,Social Relationship
D008019	Life Style	Typical way of life or manner of living characteristic of an individual or group. (From APA, Thesaurus of Psychological Index Terms, 8th ed)	Lifestyle Factors,Life Style Induced Illness,Lifestyle,Factor, Lifestyle,Life Styles,Lifestyle Factor,Lifestyles
D008297	Male		Males
D009664	Norway	A country located in northern Europe, bordering the North Sea and the Atlantic Ocean, west of Sweden. The capital is Oslo.	Kingdom of Norway
D011795	Surveys and Questionnaires	Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions.	Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response
D012044	Regression Analysis	Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable.	Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D003075	Coitus	The sexual union of a male and a female, a term used for human only.	Sexual Intercourse,Coital Frequency,First Intercourse,Coital Frequencies,First Intercourses,Frequencies, Coital,Frequency, Coital,Intercourse, First,Intercourse, Sexual,Intercourses, First
D004522	Educational Status	Educational attainment or level of education of an individual.	Education Level,Educational Achievement,Educational Attainment,Educational Level,Level of Education,Maternal Education Level,Maternal Educational Attainment,Maternal Educational Level,Paternal Education Level,Paternal Educational Attainment,Paternal Educational Level,Achievement, Educational,Educational Status, Maternal,Educational Status, Paternal,Maternal Educational Status,Paternal Educational Status,Status, Educational,Attainment, Educational,Attainment, Maternal Educational,Attainment, Paternal Educational,Education Level, Maternal,Education Level, Paternal,Education Levels,Educational Achievements,Educational Attainment, Maternal,Educational Attainment, Paternal,Educational Attainments,Educational Level, Maternal,Educational Level, Paternal,Educational Levels,Level, Education,Level, Educational,Level, Maternal Education,Level, Maternal Educational,Level, Paternal Education,Level, Paternal Educational,Levels, Maternal Educational,Maternal Education Levels,Maternal Educational Attainments,Maternal Educational Levels,Paternal Education Levels,Paternal Educational Attainments,Paternal Educational Levels,Status, Maternal Educational,Status, Paternal Educational
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man