Lofts R H, Schroeder S R, Maier R H
Black Mountain Center, NC 28711.
Am J Ment Retard. 1990 Jul;95(1):103-9.
Although pica is one of the most frequently observed eating dysfunctions among people with mental retardation, it is significantly underreported in the literature. Of 806 institutionalized adults with mental retardation in the present study, 15.5% exhibited pica. Prevalence estimates from previous studies have ranged from 25.8% to 3%. Fifty-four percent of the pica group had serum zinc levels below normal range, whereas 7% of the control group had serum zinc levels below the normal range. After supplementation with chelated zinc, residents had significant reductions in pica. Data indicated zinc as a possible adjunct to other treatment approaches.
尽管异食癖是智力障碍者中最常观察到的饮食功能障碍之一，但在文献中其报道明显不足。在本研究的806名机构收容的成年智力障碍者中，15.5%表现出异食癖。先前研究的患病率估计范围为25.8%至3%。异食癖组中54%的人血清锌水平低于正常范围，而对照组中7%的人血清锌水平低于正常范围。补充螯合锌后，居民的异食癖行为显著减少。数据表明锌可能是其他治疗方法的辅助手段。
