Impact of life course determinants on work participation among young Norwegian men
DOI:
https://doi.org/10.5324/nje.v15i1.228Abstract
Background
Methods: Through linkage between several national registers, containing personal information from birth into adult age, we established a longitudinal, population-based cohort. Study participants were all 158 026 male singletons born in Norway in 1967–1971 as registered by the Medical Birth Registry of Norway who were national residents at age 29. Study outcome was unemployment defined as a lack of personal income among persons who were not under education in the calendar year of their 29th birthday. We computed unemployment risk in separate strata, and adjusted risk ratios and population attributable risks as measures of association and impact, respectively.
Results
Conclusion
Introduksjon
: Vi har tidligere funnet at fødselsvekt under gjennomsnittet, vanskelige oppvekstforhold og kronisk sykdom i barnealder er assosiert med mangel på arbeidsdeltakelse blant 29-årige menn. Datagrunnlaget og analysen ble utvidet for å analysere om evnenivå ved sesjon medierer assosiasjonen mellom fødselsvekt og senere arbeidsdeltakelse.
Metode
: En kohort ble basert på alle levendefødte i Medisinsk fødselsregister i 1967-71. Ved hjelp av registerkoblinger fikk vi tilgang til løpende individdata på helseforhold og sosiale vilkår i livsløpet. Deltakere var alle 158 026 menn fra enkeltfødsler som bodde i riket i det året de fylte 29. Studieutfall var manglende arbeidsdeltakelse definert som manglende inntekt hos menn som ikke var under utdannelse det året de fylte 29. Vi beregnet risiko for manglende arbeidsdeltakelse i ulike strata, og relativ risiko og attribuerbar populasjonsrisiko som mål på assosiasjon og betydning av ulike risikofaktorer.
Resultater
: Assosiasjonen mellom fødselsvekt under gjennomsnittet og manglende arbeidsdeltakelse ble vesentlig mediert gjennom allment evnenivå ved sesjon, i tråd med studiehypotesen. Attribuerbar populasjonsrisiko for manglende arbeidsdeltakelse av fødselsvekt, kronisk sykdom i tidlig barnealder og syv ulike sosiale oppvekstfaktorer knyttet til foreldres inntekt, uførhet og familierelasjoner, var hver i størrelsesorden 2% til 12%. Evnenivå, utdanningsnivå og sivilstatus ved alder 28 år bidro vesentlig som forklaringsfaktorer for manglende arbeidsdeltakelse.
Konklusjon
: Gradientene i arbeidsdeltakelse blant unge menn har sin opprinnelse i tidlig oppvekst, og forhold opp gjennom livsløpet bidrar til denne risikoen.
Key words
: Adult; Birthweight; Child; Cohort Studies; Education; Employment; Follow-Up Studies; Intellectual Performance; Social Environment: Differentials in work participation among young men emerge in childhood. Circumstances throughout the life course contribute to the unemployment risk.: The association between birthweight and unemployment found earlier was mainly mediated through intellectual performance at conscript, in accordance with the study hypothesis. Birthweight, childhood disease and seven parental factors relating to income, disability, and family pattern, were independently associated with subsequent unemployment, each with population attributable risks ranging from 2% to 12%. Intellectual performance in young adult age, educational attainment, and marital status contributed substantially to the unemployment risk.: We have earlier found that birthweight below the mean, parental factors, and childhood disease were associated with unemployment at age 29. We reanalysed data because we wanted to examine if the association between birthweight and subsequent unemployment was mediated by intellectual performance at conscript.
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