The authors conducted a large-scale survey about health care twice, once as a web and once as a random digit dialing (RDD) phone survey. The web survey used a statistical technique, propensity scoring, to adjust for selection bias. Comparing the weighted responses from both surveys, there were no significant response differences in 8 of 37 questions. Web survey responses were significantly more likely to agree with RDD responses when the question asked about the respondent’s personal health (9 times more likely), was a factual question (9 times more likely), and only had two as opposed to multiple response categories (17 times more likely). For three questions, significant differences turned insignificant when adjacent categories of multicategory questions were combined. Factual questions tended to also be questions with two rather than multiple response categories. More study is needed to isolate the effects of these two factors more clearly.
The results demonstrate the feasibility and potential of using EHRs and claims for collecting new types of geriatric risk information that could augment the more commonly collected disease information to identify and move upstream the management of high-risk cases among older patients.
Aims
Data on glucose and cardiovascular disease (CVD) risk factor control among persons with type 2 diabetes mellitus (DM) according to insulin treatment status are lacking. We examined DM control, risk factors, and comorbidities among U.S. persons according to insulin treatment status.
Methods
In the U.S. National Health and Nutrition Examination Surveys 2003–2006, we examined in 10,637 adults aged ≥30 with type 2 DM the extent of control of A1c, LDL-C, HDL-C, triglycerides, and blood pressure (BP) and composite goal attainment by insulin use status.
Results
6.6% (n=889, projected to 14.3 million) had type 2 DM; of these, 22.9% were insulin users and 57.2% were treated only by other diabetes medications. Overall, 58.2% had an A1c<7% (53 mmol/mol) (insulin users 33.1%, non-insulin treated 66.1%, and 77.9% of those not on medication, p<0.0001). Overall, 44.2% were at a BP goal of <130/80 mmHg, 43.8% had an LDL-C<100 mg/dl (2.6 mmol/L), and 13.9% a BMI<25 kg/m2. Only 10.2% were simultaneously at A1c, LDL, and BP goals (5.4% of those on insulin).
Conclusions
U.S. adults with type 2 DM, especially those treated with insulin remain inadequately controlled for A1c and CVD risk factors and have a high prevalence of comorbidities.
In light of rising expenditures for physicians' services and the scheduled decreases in the amounts Medicare pays for such services, we identified the sources of change in the volume and intensity of Medicare physicians' services. We found that the per capita volume and intensity of physicians services used by Medicare beneficiaries increased more than 30% between 1993 and 1998. Our analyses indicated that, at most, half of this increase was due to measurable changes in the demographic composition, places of residence, prevalence of health conditions, and managed care enrollment of beneficiaries. The other half was due to a general increase in the use of care across beneficiary categories.
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