| 1. |
- Carré, Helena, 1979-, et al.
(författare)
-
Improved contact tracing for Chlamydia trachomatis with experienced tracers, tracing for one year back in time and interviewing by phone in remote areas
- 2008
-
Ingår i: Sexually Transmitted Infections. - : BMJ publishing. - 1368-4973 .- 1472-3263. ; 84:3, s. 239-242
-
Tidskriftsartikel (refereegranskat)abstract
- Objectives: To evaluate the Swedish model for contact tracing and especiallythe "Västerbotten model" with centralised, extended contactinterview periods, sometimes by telephone.Methods: Using questionnaires, the contact tracing and interview procedurewas evaluated during 2002, followed by an evaluation of contactinterviewing by phone in 2005–6.Results: Patients with diagnosed Chlamydia trachomatis infection reportedon average 2.5 sexual contacts, 3.0 contacts when contact interviewingwas performed at the clinic, and 2.3 contacts when performedby phone. 65% of the sexual contacts with a known test resultwere infected.Conclusion: Centralised contact tracing, exploring the sexual history forat least 12 months back in time, shows good results. Combinedwith screening of certain risk groups it is probably one effectiveway of preventing C trachomatis infections. Preventing C trachomatisby primary prevention such as information and counselling is,however, still of great importance.
|
|
| 2. |
- Dahl, Anna K., et al.
(författare)
-
Agreement between self-reported and measured height, weight and body mass index in old age : a longitudinal study with 20 years of follow-up
- 2010
-
Ingår i: Age and Ageing. - : Oxford University Press. - 0002-0729 .- 1468-2834. ; 39:4, s. 445-451
-
Tidskriftsartikel (refereegranskat)abstract
- Background: self-reported body mass index (BMI) based on self-reported height and weight is a widely used measure of adiposity in epidemiological research. Knowledge about the accuracy of these measures in late life is scarce.Objective: the study aimed to evaluate the accuracy and changes in accuracy of self-reported height, weight and BMI calculated from self-reported height and weight in late life.Design: a longitudinal population-based study with five times of follow-up was conducted.Participants: seven hundred seventy-four community-living men and women, aged 40–88 at baseline (mean age 63.9), included in The Swedish Adoption/Twin Study of Aging.Methods: participants self-reported their height and weight in a questionnaire, and height and weight were measured by experienced research nurses at an in-person testing five times during a 20-year period. BMI was calculated as weight (kilogramme)/height (metre)2.Results: latent growth curve modelling showed an increase in the mean difference between self-reported and measured values over time for height (0.038 cm/year) and BMI (0.016 kg/m2/year), but not for weight.Conclusions: there is a very small increase in the mean difference between self-reported and measured BMI with ageing, which probably would not affect the results when self-reported BMI is used as a continuous variable in longitudinal studies.
|
|
