Results 131 to 140 of about 36,511 (307)
The Kaohsiung Journal of Medical Sciences, EarlyView.ABSTRACT This study explored the association between the composite dietary antioxidant index (CDAI) and cardiovascular‐kidney‐metabolic (CKM) progression in an older population. Using data from NHANES 2001–2020, we analyzed 4974 adults aged ≥ 60 years with CKM syndrome. The CDAI was calculated from the intake of six dietary antioxidants.
Fu‐Shan Qiu +3 more
wiley +1 more source
The relationship between ventilatory ratio (VR) and 28-day hospital mortality by restricted cubic splines (RCS) in 14,328 mechanically ventilated ICU patients. [PDF]
BMC Pulm Med, 2022 Yang Y +6 more
europepmc +1 more source
Least squares cubic splines without B-splines
, 2003 Readers of the Gazette will be familiar with the use of least squares to find the polynomial that best fits a set of data points. As with all curve fitting problems, there are many situations where one low order polynomial is inadequate and a high order ...
S. K. Lucas
core
Shape-preserving properties of univariate cubic L1 splines
, 2004 The results in this paper quantify the ability of cubic L1 splines to preserve the shape of nonparametric data. The data under consideration include multiscale data, that is, data with abrupt changes in spacing and magnitude.
Cheng, Hao +5 more
core +1 more source
The Kaohsiung Journal of Medical Sciences, EarlyView.ABSTRACT The stress hyperglycemia ratio (SHR), a novel marker reflecting relative hyperglycemia, has been increasingly recognized for its prognostic value in cardiovascular and metabolic diseases. However, its association with early renal damage in hypertensive patients remains underexplored.
Kai‐Jun Zhang +5 more
wiley +1 more source
Using fractional polynomials and restricted cubic splines to model non-proportional hazards or time-varying covariate effects in the Cox regression model. [PDF]
Stat Med, 2022 Austin PC, Fang J, Lee DS.
europepmc +1 more source
Cubic spline functions revisited
Journal of Computational and Applied MathematicsIn this paper a fourth order asymptotically optimal error bound for a new cubic interpolating spline function, denoted by Q-spline, is derived for the case that only function values at given points are used but not any derivative information. The bound seems to be stronger than earlier error bounds for cubic spline interpolation in such setting such as
openaire +2 more sources
The Kaohsiung Journal of Medical Sciences, EarlyView.ABSTRACT Metabolic dysfunction‐associated steatotic liver disease (MASLD) is increasingly prevalent among lean Asian populations, yet effective strategies for identifying high‐risk individuals remain limited. We investigated the associations of body fat percentage (BF%) and the triglyceride‐glucose (TyG) index with lean MASLD and evaluated their ...
Xiang‐Ran Kong +4 more
wiley +1 more source
Using Restricted Cubic Splines to Study the Trajectory of Systolic Blood Pressure in the Prognosis of Acute Myocardial Infarction. [PDF]
Front Cardiovasc Med, 2021 Zheng S +8 more
europepmc +1 more source
The Kaohsiung Journal of Medical Sciences, EarlyView.ABSTRACT This retrospective cohort study utilized the Medical Information Mart for Intensive Care database to investigate the association between the triglyceride–glucose (TyG) index and in‐hospital intensive care unit (ICU) readmission in patients with ischemic stroke (IS). Among 2929 patients, 24.0% experienced ICU readmission.
Di Zhang +3 more
wiley +1 more source