Application of Cluster Sampling Techniques for Analyzing the Effect of Dhatri Lauha – An Ayurvedic Formulation in Iron Deficiency Anaemia

The present work consists of the data of multicentric clinical study conducted on Iron Deficiency Anaemia (Pandu Roga) with an Ayurvedic formulation, Dhatri Lauha. The objective of current study was to assess the clinical safety and efficacy of Dhatri Lauha in the patients of Iron Deficiency Anaemia through measurable objective parameters. This multicentric study was conducted in 12 peripheral research institutes of Central Council for Research in Ayurvedic Sciences, Department of AYUSH, Ministry of Health & Family Welfare, Government of India, New Delhi to evaluate the safety and efficacy of Dhatri Lauha with 45 days of treatment. Total 458 Patients were enrolled in this study out of which 400 patients had successfully completed it. Cluster Sampling techniques were used for the analysis of the data on the objective parameters such as weakness, fatigue, palpitation, breathlessness and swollen feet. There has been little work done on methods for cluster analysis of the data where the outcome measure is an event rate (per person time). This work contributes to the application of the statistical techniques for analysis of the Bio-medical studies data.