Correlate as named by investigatorPeople investigatedFinding
Sexual intercourse
Parents, followed 3 years, USA, 197?-7?
Sex life
Undergraduate students, Temple University, Pennsylvania, USA, 1973
Frequency of sex
16+ aged, general public, Austria, 1984
sex-life
18-88 aged, general public, Denmark, 1993
sexual activity
31-33 aged, Denmark 1993, born in University Hospital in Copenhagen
Intercourse frequency
Infertile couples and matched controls, followed 3 years, USA 1988-1990
number of sexual partners
19-69 aged heterosexuals, the Netherlands, 2006.
Frequency of sexual contact
19-69 aged heterosexuals, the Netherlands, 2006.
Frequency of sex
18+ aged, general public, USA, 1972-2006
Female Sexual Function Index (FSFI)
Transgender women with neo-vagina, followed 1 year post surgery, Netherlands, 2011-15