We consider the class of convex minimization problems, composed of a self-concordant function, such as the log det metric, a convex data fidelity term h(·) and, a regularizing – possibly non-smooth – function g(·). This type of problems have recently attracted a great deal of interest, mainly due to their omnipresence in top-notch applications. Under this locally Lipschitz continuous gradient s...

Some individuals feel strong conviction and interest in pursuing personal goals, and minimal pressure and compulsion (i.e., they feel more ‘‘self-concordant’’ in their goal pursuits). Sheldon and colleagues argue that this is because their goals well match their implicit personalities (Sheldon, Pers Soc Psychol Rev 18:349 365, 2014). We evaluated this claim in a new way by first measuring parti...

Background: Non-concordance with medication remains a major public health problem that imposes a considerable financial burden on the health care system, and there is still a need for studies on correlates of non-concordance. Our first aim is to analyse whether any of the individual characteristics age, educational level, financial strain, self-rated health, social participation, and trust in t...

OBJECTIVE This report compares self-reported diabetes in the National Health Interview Survey (NHIS) with diabetes identified using the Medicare Chronic Condition (CC) Summary file. BACKGROUND NHIS records have been linked with Medicare data from the Centers for Medicare & Medicaid Services. The CC Summary file, one of several linked files derived from Medicare claims data, contains indicator...

We assessed the agreement in detection of high-risk human papillomavirus (HPV), as well as specific HPV types, between self- and clinician-obtained specimens for 450 women over 18 years of age attending a community health center in Gugulethu, South Africa. Both self-collected swabs and tampons had high agreement with clinician-obtained brushes when the Roche Reverse Line Blot Assay (RLBA) was u...

We consider the volumetric barrier for semide2nite programming, or “generalized” volumetric barrier, as introduced by Nesterov and Nemirovskii. We extend several fundamental properties of the volumetric barrier for a polyhedral set to the semide2nite case. Our analysis facilitates a simpli2ed proof of self-concordance for the semide2nite volumetric barrier, as well as for the combined volumetri...

The classical asymptotic theory for parametric $M$-estimators guarantees that, in the limit of infinite sample size, excess risk has a chi-square type distribution, even misspecified case. We demonstrate how self-concordance loss allows to characterize critical size sufficient guarantee in-probability bound risk. Specifically, we consider two classes losses: (i) self-concordant losses sense Nes...

OBJECTIVES To evaluate the concordance between self-reported data and variables obtained from Medicare administrative data in terms of chronic conditions and health care utilization. DESIGN Retrospective observational study. PARTICIPANTS We analyzed data from a sample of Medicare beneficiaries who were part of the National Study of Chronic Disease Self-Management Program (CDSMP) and were el...

The Borderline Personality Disorder Features Scale for Children (BPFSC) is currently the only dimensional measure specifically developed to assess borderline features in children and adolescents. Few studies have investigated this measure for its concurrent validity and concordance between youth self-report and parent-report versions. To this end, the current study had two aims: (1) to investig...