Search results for "esiintyvyys"
showing 5 items of 15 documents
Physical activity, screen time and the incidence of neck and shoulder pain in school-aged children
2022
This study investigated the associations of accelerometer-measured physical activity, sedentary time and screen time with the incidence of neck and shoulder pain in school-aged children over a two-year follow-up. Children (aged 10–15) were measured at baseline 2013 (T0) (n = 970) and at follow-ups 2014 (T1) and 2015 (T2). Neck and shoulder pain frequency and screen time were determined with a web-based questionnaire. Daytime moderate to vigorous physical activity and sedentary time were measured with an accelerometer. Logistic regression was applied, and the results were adjusted for age, gender, body mass index and bedtime. Accelerometer-measured physical activity or sedentary time at base…
Do large‐scale associations in birds imply biotic interactions or environmental filtering?
2023
Aim There has been a wide interest in the effect of biotic interactions on species' occurrences and abundances at large spatial scales, coupled with a vast development of the statistical methods to study them. Still, evidence for whether the effects of within-trophic-level biotic interactions (e.g. competition and heterospecific attraction) are discernible beyond local scales remains inconsistent. Here, we present a novel hypothesis-testing framework based on joint dynamic species distribution models and functional trait similarity to dissect between environmental filtering and biotic interactions. Location France and Finland. Taxon Birds. Methods We estimated species-to-species association…
Myyräkuumeen ja myyrärunsauden välisen suhteen mallintaminen tila-avaruusmalleilla
2016
Tutkielma käsittelee myyräkuumeen mallintamista tila-avaruusmalleilla. Tutkin myyrärunsauksien ja myyräkuumetapausten välistä riippuvuutta ja selvitän, voidaanko myyrärunsauksilla ennustaa tulevia myyräkuumetapausten lukumääriä. Sen lisäksi selvitän, kuinka monen kuukauden viiveellä myyräkuumetapaukset ilmenevät suhteessa myyrärunsauksiin. Sekä myyrärunsaudet että myyräkuumetapausten lukumäärät vaihtelevat vuodenajan mukaan. Myyräkuumetapausten aineisto on kerätty Terveyden ja hyvinvoinnin laitoksen tartuntatautirekisterin tilastotietokannasta ja myyrärunsausaineisto on saatu Jyväskylän yliopiston Bio- ja ympäristötieteiden laitokselta. Molempien aikasarjojen alkamisvuosi on 1995. Myyräruns…
Associations of Children’s Close Reading Distance and Time Spent Indoors with Myopia, Based on Parental Questionnaire
2022
Purpose: To study the association of parents’ reports about their children’s near work and outdoor habits with myopia in their children. Methods: Data from a questionnaire study conducted in 1983 among Finnish schoolchildren were reanalyzed. Vision screening had been performed for all the schoolchildren (n = 4961) in the 1st, 5th, and 8th grades (7-, 11-, and 15-year-olds) in an area of Central Finland. The questionnaire, including information about myopia, was returned by 4305 (86.7%) participants. Items concerned parents’ estimates of their child’s habitual reading distance, time spent indoors as compared with age peers, daily near work, outdoors time, and parents&…
Associations of near work time, watching TV, outdoors time, and parents' myopia with myopia among school children based on 38-year-old historical dat…
2021
Purpose To study the prevalence and risk factors of myopia with data from a questionnaire study conducted in 1983 among Finnish school children. Methods School children (n = 4 961) from the 1st, 5th and 8th grades of school (7-, 11- and 15-year-olds) in Central Finland were screened for vision followed by a questionnaire, which was returned by 4 352 (87.7%) participants. Myopia was categorized based on the questionnaire. Items concerned daily time spent on near work and outdoor activities, excluding time spent at school, watching TV and parental myopia and the associations of myopia with these factors were studied. Results The prevalence of myopia was 3%, 15% and 27% among the 7-, 11- and 1…