I thank you for your efforts. I invite you to support the proposal of risk factor as a Wikidata property. The property will be an excellent contribution to Wikidata as it can allow this high-scale knowledge base to be useful for digital epidemiology purposes. The proposal is available in https://www.wikidata.org/wiki/Wikidata:Property_proposal/risk_factor. This property is a generalization of the first property proposal I developed.