Sentence examples for first intercourse for from inspiring English sources

The mean age at first intercourse for CCHS respondents aged 15 24 years was between 16 and 17.

The risk of cervical cancer was higher for earlier age at first intercourse for both squamous cell (P for trend ⩽0.0001) and adenocarcinoma (P=0.004).

A recent publication on sexual behaviour among Nordic women reported a median age of 16 years for the first intercourse for the Norwegian women involved [ 24].

The determinants of CIN3 among infected women were, in contrast, early age at first intercourse (OR for 16 years old or less = 3.23; 95% Cl = 1.33 7.69), a long time since starting a new sexual relationship (OR for 6 years or more = 4.94; 95% Cl = 2.51 9.71), and cigarette smoking, with strong evidence for a dose– response (OR for current smoking habit 20+ per day = 2.57; 95% Cl = 1.49 4.45).

In South Africa, the average age at first intercourse is 15 years for boys and 14 for years for girls [ 4].

In the 2003 Demographic and Health Survey (DHS), the median age of first intercourse was 16.1 years for women and 17.8 for men [ 19].

All predictors were measured in Grade 8 and age at first intercourse was assessed yearly for three years.

Condom use during first intercourse was very low for both males and females (8.3%).

As expected, marital status of women and age at first intercourse were risk factors for HPV infection.

In contrast, Figure 1b shows that HPV prevalence was strongly associated with lifetime number of sexual partners within each category of age at first intercourse (P < 0.001 for each age stratum).

The most common reasons given by pregnant teenagers for first intercourse were: being already married at the time (56%) and living with their partner or intending to get married (27%).