- Dataset 3 Health Insurance Costs Link to Excel file: Health Insurance Costs.xlsx Description: The data contains medical information and costs billed by health insurance companies. It contains 1338 rows of data and the following columns: age, gender, BMI, children, smoker, region and insurance charges. Columns included in the dataset: age: age of primary beneficiary gender: insurance contractor gender (1=female, 0=male) bmi: Body mass index. Calculated as a person's weight divided by the square of height. A high BMI can indicate high body fatness. BMI screens for weight categories that may lead to health problems, but it does not diagnose the body fatness or health of an individual. children: Number of children covered by health insurance / Number of dependents smoker: if the person is a smoker or not (1= smoker; O-non-smoker) region: the beneficiary's residential area in the US: northeast, southeast, southwest, or northwest. charges: Individual medical costs in US dollars billed by health insurance