Cohort study reveals worse health profiles among non-participants in a Danish population, suggesting crude registry proxies fail to adequately capture representativeness.
The detailed data presented reinforce the contention that the health profile of non-participants is typically worse than that of participants. The results also indicate that while data from public registers give easily accessible information about non-participants, these crude proxy measures of health may not be enough to document representativeness.
No takes yet. Share an insight, caveat, or question.
Drivsholm et al. (2006) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: