OBJECTIVEReasons for failing to initiate prescribed insulin (primary nonadherence) are poorly understood. We investigated barriers to insulin initiation following a new prescription.RESEARCH DESIGN AND METHODSWe surveyed insulin-naïve patients with poorly controlled type 2 diabetes, already treated with two or more oral agents who were recently prescribed insulin. We compared responses for respondents prescribed, but never initiating, insulin (n = 69) with those dispensed insulin (n = 100).RESULTSSubjects failing to initiate prescribed insulin commonly reported misconceptions regarding insulin risk (35% believed that insulin causes blindness, renal failure, amputations, heart attacks, strokes, or early death), plans to instead work harder on behavioral goals, sense of personal failure, low self-efficacy, injection phobia, hypoglycemia concerns, negative impact on social life and job, inadequate health literacy, health care provider inadequately explaining risks/benefits, and limited insulin self-management training.CONCLUSIONSPrimary adherence for insulin may be improved through better provider communication regarding risks, shared decision making, and insulin self-management training.

Objective. Describe a novel approach to comprehensively summarize medication adherence. Data Sources/Study Setting. Kaiser Permanente Northern California Diabetes Registry (n $ 220,000) Study Design. In a new prescription cohort design (27,329 subjects prescribed new medications), we used pharmacy utilization data to estimate adherence during 24 months follow-up. Proportion of time without sufficient medications (medication gaps) was estimated using a novel measure (New Prescription Medication Gaps [NPMG]) and compared with a traditional measure of adherence. Data Collection/Extraction Methods. Data derived from electronic medical records and survey responses. Principal Findings. Twenty-two percent of patients did not become ongoing users (had zero or only one dispensing of the new prescription). The proportion of newly prescribed patients that never became ongoing users was eightfold greater than the proportion who maintained ongoing use, but with inadequate adherence. Four percent of those with at least two dispensings discontinued therapy during the 24 months followup. NPMG was significantly associated with high out-of-pocket costs, self-reported adherence, and clinical response to therapy. Conclusions. NPMG is a valid adherence measure. Findings also suggest a larger burden of inadequate adherence than previously thought. Public health efforts have traditionally focused on improving adherence in ongoing users; clearly more attention is needed to address nonpersistence in the very first stages after a new medication is prescribed.

OBJECTIVETo estimate the incidence of remission in adults with type 2 diabetes not treated with bariatric surgery and to identify variables associated with remission.RESEARCH DESIGN AND METHODSWe quantified the incidence of diabetes remission and examined its correlates among 122,781 adults with type 2 diabetes in an integrated healthcare delivery system. Remission required the absence of ongoing drug therapy and was defined as follows: 1) partial: at least 1 year of subdiabetic hyperglycemia (hemoglobin A1c [HbA1c] level 5.7–6.4% [39–46 mmol/mol]); 2) complete: at least 1 year of normoglycemia (HbA1c level <5.7% [<39 mmol/mol]); and 3) prolonged: complete remission for at least 5 years.RESULTSThe incidence density (remissions per 1,000 person-years; 95% CI) of partial, complete, or prolonged remission was 2.8 (2.6–2.9), 0.24 (0.20–0.28), and 0.04 (0.01–0.06), respectively. The 7-year cumulative incidence of partial, complete, or prolonged remission was 1.47% (1.40–1.54%), 0.14% (0.12–0.16%), and 0.007% (0.003–0.020%), respectively. The 7-year cumulative incidence of achieving any remission was 1.60% in the whole cohort (1.53–1.68%) and 4.6% in the subgroup with new-onset diabetes (<2 years since diagnosis) (4.3–4.9%). After adjusting for demographic and clinical characteristics, correlates of remission included age >65 years, African American race, <2 years since diagnosis, baseline HbA1c level <5.7% (<39 mmol/mol), and no diabetes medication at baseline.CONCLUSIONSIn community settings, remission of type 2 diabetes does occur without bariatric surgery, but it is very rare.

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