New Gay Force surveys is comfort trials taken from different supply. Manner noticed can thus result from genuine alterations in sexual behaviours or regarding alterations in brand new socio-group structure of the respondents. One method to make sure the fresh new comparability of your trials is to try to test if indicators which aren’t supposed to change over big date within this a given age bracket are already stable. Including, years to start with intercourse said because of the MSM of your own 1980–1983 age group ought to be klicka pГҐ denna Г¶ver hГ¤r nu the exact same regarding the 1995 survey when they are 30–33 years old such as new 2004 survey whenever how old they are is actually 39–42. Consequently, immediately following managing getting generation, zero tall effect of the survey season is are nevertheless. We utilized linear and you will logistic patterns to evaluate which presumption for studies level (higher education inside the participants old ? 20), sex of your first mate and you will many years initially intercourse that have a guy; questionnaire ages have been incorporated just like the dummy details. Designs had been including adjusted to possess decades at survey to take into account the brand new contribution bias regarding years in this particular benefits questionnaire [38, 39]. Decades and you can age bracket was as part of the models because continuing variables once fractional polynomial conversion process when it enhanced design match . Continue lendo “An initial investigation: Comparability of the samples”