When is data too old to inform nursing science and practice?
https://onlinelibrary.wiley.com/doi/10.1111/jan.15411
The Journal of Advanced #Nursing says the period of data collection should be no more than 3 years before submission of the manuscript.

Earlier - on the timely #reporting of #RCTs:
EU clinical trials have to post results within six (paediatric trials) or 12 months (non-paediatric).
https://health.ec.europa.eu/medicinal-products/clinical-trials/clinical-trials-directive-200120ec_en

#PublicationLag #FileDrawerEffect