Hartz A J, Rimm A A
Am J Public Health. 1980 Apr;70(4):385-8. doi: 10.2105/ajph.70.4.385.
A health survey of 6946 50-to-59 year-old women of TOPS, an organization for weight reduction, was used to study the natural history of obesity. Weight history was compared for four groups of women divided on the basis of their per cent above ideal body weight (IBW) in their 50s (less than 20%, 20-49%, 50-99% and 100+%). In each of the four groups, the majority of women were not obese by age 20. Sixteen per cent of the women who were 100+% overweight in their 50s were not obese at anytime during their first 30 years of life. Thirty-six per cent of the women who were 50-99% about IBW were not overweight at anytime prior to their 30th birthday. The history of obesity prior to age 30 was not associated with weight gain between the ages of 30 and 50. These data suggest: 1) than there is no critical time for the development of obesity, and 2) that previous weight history is not a dominant factor in determining subsequent weight gain.
对“TOPS”（一个减肥组织）中6946名50至59岁女性进行的健康调查被用于研究肥胖的自然史。根据她们50多岁时超过理想体重（IBW）的百分比（低于20%、20 - 49%、50 - 99%和100%以上）将女性分为四组，并比较了这四组女性的体重史。在这四组中的每一组中，大多数女性在20岁时都不肥胖。50多岁时超重100%以上的女性中，有16%在其生命的前30年中的任何时候都不肥胖。体重约为理想体重的50 - 99%的女性中，有36%在30岁生日之前的任何时候都不超重。30岁之前的肥胖史与30至50岁之间的体重增加无关。这些数据表明：1）肥胖的发生没有关键时期，2）既往体重史不是决定随后体重增加的主要因素。
