Sachin Singh

Correlation between Vitamin D and Severity of Periodontitis in CKD Patient

Sachin Singh, Upma Narain & Arvind Gupta · Asian Journal of Dental Sciences · 2023

Introduction: As the disease progresses, chronic kidney disease (CKD) patients become susceptible to a broad range of adverse health outcomes, including periodontitis. Both chronic kidney disease and periodontitis have been associated with vitamin D deficiency. Vitamin D, known f...

Open access Research Article

Separate Ratio Estimator Using Calibration Approach for the Population mean in Stratified Random Sampling

B. B. Khare, Sachin Singh & Manish Mishra · Asian Journal of Probability and Statistics · 2022

In this paper we investigate the problem of estimation of finite population mean using auxiliary information. The aim of this paper is to modify a separate ratio estimator by using calibration approach for the population mean using stratified random sampling. We use the calibrati...

Open access Research Article 10.9734/ajpas/2022/v20i3427