Studies in Confusion, from The Washington Post:
For women confused by the latest flurry of health advice about low-fat diets, calcium, Vitamin D and hormones, there is a good reason: The findings illustrate how unexpected pitfalls during a major scientific study can yield valuable data but few clear answers.Technorati Tags: washington post, calcium, vitamin d, womens health initiative
Research frequently moves in unexpected fits, starts and sometimes puzzling increments. In the case of long, complex projects such as the Women's Health Initiative, the 15-year, $725 million federally funded project that produced the latest results, questionable assumptions, design decisions and unexpected developments can conspire to generate perplexing results.