Autism spectrum disorder (ASD) is an etiologically heterogeneous neurodevelopmental condition that eludes a single explanation or cure. Epidemiological studies reveal risk factors, relevant comorbidities, and behavioral correlates to reach a better understanding of ASD. To contribute such data from an understudied ASD population, this paper presents epidemiological data from a Turkish sample of individuals with ASD (n = 911, 748 boys (82.1%) and 163 girls (17.9%) between 1 and 18 years of age). Average age at diagnosis was 31.06 ± 11.88 months, and the male-to-female ratio was 4.6:1. Three in 4 individuals with ASD had obsessive behaviors, and 1 in 4 had allergic conditions, inappropriate sexual behaviors, self-harming behaviors, and harmful behaviors towards others. One in 3 received a dietary treatment for at least 3 months; almost half received vitamin supplements; the majority (70%) did not experience constipation; and 2 in 3 were picky eaters. This paper presents data on the age of diagnosis, gender ratios, accompanying behaviors, and dietary interventions in Turkish individuals with ASD, which are topics of current research interest about ASD. Such data from non-Western populations may supplement epidemiological knowledge gained from Western populations to help reach a more comprehensive understanding of this condition with many unknowns.

自闭症谱系障碍 (ASD) 是一种病因学异质性神经发育状况，无法通过单一解释或治愈。流行病学研究揭示了风险因素、相关合并症和行为相关性，以更好地了解 ASD。为了提供来自未被充分研究的 ASD 人群的此类数据，本文提供了来自土耳其 ASD 患者样本的流行病学数据（n = 911，748 名男孩 (82.1%) 和 163 名女孩 (17.9%)，年龄在 1 至 18 岁之间）。平均诊断年龄为 31.06 ± 11.88 个月，男女比例为 4.6:1。四分之三的自闭症患者有强迫行为，四分之一的人有过敏症状、不适当的性行为、自残行为和对他人的伤害行为。三分之一的人接受了至少 3 个月的饮食治疗；几乎一半接受了维生素补充剂；大多数人 (70%) 没有便秘；三分之二的人挑食。本文介绍了土耳其 ASD 患者的诊断年龄、性别比例、伴随行为和饮食干预的数据，这些都是当前 ASD 研究的热点话题。