JSR Vol 53 Number 1 (2019) August 9, 2019August 9, 2019 Co-Editor Joint modeling of bivariate longitudinal and survival data in spouse pairs By Jia-Yuh Chen, Richard Schulz and Stewart J. Anderson⋆ Assessing the inter-patient variability in the area under the concentration curve By M. Iftakhar Alam District level child nutrition status in Bangladesh: An application of small area estimation method By Mossamet Kamrun Nesa Review and evaluation of the concordance measures for assessing discrimination in the logistic regression methods By Biplab Biswas, Maidul Husain and M. Shafiqur Rahman A class of ratio-type estimators under two-phase sampling in the presence of auxilary variables By P. A. Patel and F. H. Shah