Intentional weight loss was associated with lower mortality, whereas unintentional weight loss was associated with increased mortality.

Assessment of risk factors Weight loss intention and weight change during the previous year were assessed by self report in a supplemental survey to the 1989 National Health Interview Survey. The same survey was used to determine age, ethnicity, sex, smoking status, self rated health, hospital admissions, physician visits, chronic and acute conditions, limitations in activities or work, and height and weight.