Restricted cubic spline analysis of the functional form of the association between the number of oocytes retrieved and the IVF outcomes after fresh ET.Qianfang CaiFei WanKai HuangHanwang Zhang
Examples show that the inclusion of time-dependent covariables defined as step functions into the restricted cubic spline proportional hazards model reduces computation time by a factor of 213 over the Cox model. Advantages of the spline model also include flexibility of the hazard, smooth survival ...
The restricted cubic spline hazard model. Commun Stat-Theor M. 1990;19(2):639–63. Article Google Scholar Frome EL, Kutner MH, Beauchamp JJ. Regression analysis of poisson-distributed data. J Am Stat Assoc. 1973;68(344):935–40. Article Google Scholar Frome EL, Checkoway H. Use of...
限制性立方样条在非线性回归中的应用研究 The Application of Restricted Cubic Spline in Nonlinear Regression 下载积分:1500 内容提示: 限制性立方样条在非线性回归中的应用研究事罗剑锋1,2金欢1· 2李宝月1· 2赵耐青1· 2△· 229·【提要】目的探讨限制性立方样条在自变量和应变量非线性相关时的应用。方法...
Specifically, we performed a Wald χ2 test (or ‘chunk test’) to jointly assess whether all the terms, including nonlinear terms in the restricted cubic spline are zero34. If the test is nonsignificant, it indicates that the variable represented by the spline is not associated with the ...
Restricted cubic spline analyses (eAppendix in the Supplement) indicated that the correlation between social isolation and incident CVD was linear (3 knots: nonlinear P = .58; 4 and 5 knots: nonlinear P = .06), with plots exhibiting a pattern indicative of overfitting. There was a...
In the multivariate Cox regression analysis, LBSIZ but not BMI or WC showed a significant hazard ratio of CVD event compared to 1st decile of each parameter. In the restricted cubic spline regression, BMI and WC showed an overall J-shaped relationship with CVD events whereas LBSIZ showed a ...
The multivariable logistic and linear regression, the restricted cubic spline (RCS) analysis, and subgroup analysis were applied to find the associations between the essential elements and the prevalence of diabetes as well as FPG, PPG, and HbA1c.#In the multivariable logistic regression and ...
A multivariate logistic regression analysis was performed to determine the OR for sarcopenic obesity and CVD. Furthermore, the OR of LBSIZ for sarcopenic obesity and CVD was analyzed using restricted cubic spline splits with five knots. The analyses were performed using SPSS software version 24.0 ...
Evidence-based medication adherence among seniors in the first year after heart failure hospitalisation and subsequent long-term outcomes: a restricted cubic spline analysis of adherence-outcome relationships Xiwen Qin Joseph Hung Frank M. Sanfilippo European Journal of Clinical Pharmacology (2023)Downloa...