Increasing total fiber intake reduces risk of weight and fat gains in women.

Research investigating fiber intake and changes in weight over time has not controlled for important covariates, especially physical activity. Moreover, studies have rarely examined the influence of fiber on changes in body fat, only weight. Hence, this study was conducted to determine whether changes in fiber intake (total, soluble, and insoluble) influence risk of gaining weight and body fat over time.

Explaining the difference in prostate cancer mortality rates between white and black men in the United States.

Objectives: Black men have a twofold increased risk of dying of prostate cancer compared to white men. We assessed the extent to which differences in stage and grade at diagnosis, age, multiple primary cancers, and the first course of cancer-directed therapy influence the likelihood of prostate cancer death among diagnosed cases.

Methods: Incidence-based mortality (IBM) is a method that involves tracking disease cases from diagnosis to death, such that the mortality event is linked to factors identified with the disease at the time of diagnosis (eg, tumor stage and grade).