H. Stigum et al., FREQUENCY OF SEXUAL PARTNER CHANGE IN A NORWEGIAN POPULATION - DATA DISTRIBUTION AND COVARIATES, American journal of epidemiology, 145(7), 1997, pp. 636-643
The number of new sexual partners per year (partner frequency) is a ke
y factor in the spread of sexually transmitted diseases. Data from two
Norwegian population-based surveys conducted in 1987 and 1992 were us
ed to estimate recent (in the previous 3 years) and earlier partner fr
equency and to examine covariates affecting the distribution of partne
r frequency. Seventy-two percent of respondents reported having no new
partners per year, and 2% reported having more than three new partner
s per year. Results from a Poisson regression model indicated that a l
ow partner frequency was associated with being married or cohabiting,
being female, greater age, and late sexual debut. Partner frequency wa
s lower in 1992 than in 1987 (rate ratio = 0.8, 95% confidence interva
l 0.7-0.9). In comparison with earlier life, there was a large reducti
on in partner frequency for married/cohabiting individuals. In contras
t, there was either no change or some increase in partner frequency fo
r single persons.