“…In six studies, loss to follow-up was unclear; six studies had ,10% of participants lost to follow-up, whereas one had lost 27.5% to followup (13). All the studies used some form of adjustment for baseline covariates; however, six did not adjust for baseline diabetes medication (15,19,20,23,24,27), and four did not adjust for baseline hypertension medication (13,16,17,20,27). Of the seven studies that did include hypertension medication (12,15,18,23,24,26,28), two adjusted for ACE inhibitor/angiotensin receptor blocker use (23,24).…”