height and weight at the time of admission to the university are related to their chance of developing coronary heart disease by 2000. i. Study Design: ii. Descriptive or Analytic: e. The entire population of women over age 60 in a given community is examined, and all who are determined to be free from having osteoporosis are questioned extensively about their diets. These women then are followed for several years to see whether or not their eating habits will predict their risk of developing osteoporosis. i. Study Design: ii. Descriptive or Analytic: f . Men and women are identied who developed a rare form of lung cancer in their 30s. The type of cancer is hypothesized to be associated with asbestos. The participants are asked about the different places they have lived, worked and gone to school over the past 25 years. State environmental records showing asbestos removal and asbestos control are then cross-referenced with the places identied by each study participant to nd for which locations asbestos is recorded. i. Study Design: ii. Descriptive or Analytic