Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina.
Int J Eat Disord. 2014 Nov;47(7):836-43. doi: 10.1002/eat.22309. Epub 2014 Jun 5.
Studies of age of first binge have been conducted in clinical samples of patients with bulimia nervosa (BN) and binge eating disorder (BED), but few studies have examined age of first binge using nationally representative samples.
We examined age of first binge and its clinical correlates using data generated from the National Women's Study (n = 3,006). Participants who endorsed ever binge eating (n = 707) were divided into two groups: (1) child-adolescent onset (CO)--age of first binge <18 years, and (2) adult onset (AO)--age of first binge ≥18 years. We hypothesized that CO binge eating would be associated with greater (1) likelihood of developing BN/BED, (2) severity of BN/BED, (3) history of trauma and PTSD, and (4) history of psychiatric comorbidity, such as major depression and substance use.
Of those who ever endorsed binge eating, 212 reported CO (30%) and 495 (70%) reported AO. Although AO binge eating was more common, CO binge eating was associated with higher rates of lifetime BN, greater severity of bulimic symptoms, earlier age of first dieting; earlier age at highest weight, greater likelihood of ED treatment, and higher rates of molestation, physical assault, any direct victimization, lifetime PTSD, and substance abuse.
AO binge eating is more than twice as common as CO binge eating in women, but CO binge eating is associated with higher rates of lifetime BN, greater severity of BN, and higher rates of victimization, PTSD, and substance abuse.
已有研究对神经性贪食症（BN）和暴食障碍（BED）患者的首次暴食年龄进行了研究，但使用全国代表性样本研究首次暴食年龄的研究较少。
我们使用全国女性研究（n=3006）生成的数据，研究了首次暴食年龄及其临床相关性。凡报告曾有过暴食行为的参与者（n=707）被分为两组：（1）儿童-青少年起病（CO）——首次暴食年龄<18 岁，（2）成人起病（AO）——首次暴食年龄≥18 岁。我们假设 CO 暴食与更高的（1）发展为 BN/BED 的可能性，（2）BN/BED 的严重程度，（3）创伤和 PTSD 史，以及（4）共病精神障碍史，如重度抑郁症和物质使用障碍相关。
在那些曾有过暴食行为的人中，有 212 人报告了 CO（30%），495 人（70%）报告了 AO。虽然 AO 暴食更为常见，但 CO 暴食与更高的终生 BN 发生率、更严重的暴食症状、更早的首次节食年龄、更早的最高体重年龄、更有可能接受 ED 治疗以及更高的性虐待、身体攻击、任何直接受害、终生 PTSD 和物质滥用发生率相关。
在女性中，AO 暴食的发生率是 CO 暴食的两倍多，但 CO 暴食与更高的终生 BN 发生率、更严重的 BN 严重程度以及更高的受害率、PTSD 和物质滥用发生率相关。
