Ghasemi Hadi, Mirdehghan Seyedeh Reihaneh, Namdari Mahshid, Bayat Fariborz
Department of Community Oral Health, School of Dentistry, Shahid Beheshti University of Medical Sciences, Daneshjou Blvd., Evin, Postal Code: 1983963113, Tehran, Iran.
Dental Research Institute, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Environ Health Prev Med. 2016 Nov;21(6):446-449. doi: 10.1007/s12199-016-0546-y. Epub 2016 Jun 21.
To assess the impact of occupational factors on the sex ratio of dentists' children.
A randomly selected 501 Iranian dentists participated in a telephone interview. The participants were contacted by their mobile number to answer questions about demographic variables (gender, age, marriage status), practice-related variables (year of graduation as general or specialist dentist, years of clinical work, working hours, average number of radiographs taken in a day, and spouse's job), and questions about their children (number, gender and date of birth of each child). Kruskal-Wallis and Chi-square tests served for statistical evaluation.
Of all participating dentists, 71 % were men, about two-thirds were 35- to 50-year olds, and 89 % were married. In total, the dentists had 768 children; about 21 % had no child. Of all the children, 54 % were boys (overall sex ratio = 1.17). The offspring sex ratio was 1.13 among male dentists, 1.50 for female dentists, and 1.44 when both parents were dentists. Higher percentages of boys were prevalent among female dentists, younger dentists, and general dental practitioners (p < 0.008).
Demographic and practice-related factors showed some impact on proportions of both sexes of dentists' children in this study. However, the result needs evaluation in further studies.
评估职业因素对牙医子女性别比例的影响。
随机选取501名伊朗牙医参与电话访谈。通过手机号码联系参与者，询问有关人口统计学变量（性别、年龄、婚姻状况）、执业相关变量（作为普通牙医或专科牙医的毕业年份、临床工作年限、工作时长、一天内拍摄X光片的平均数量以及配偶职业）以及有关其子女的问题（每个孩子的数量、性别和出生日期）。采用Kruskal-Wallis检验和卡方检验进行统计评估。
在所有参与的牙医中，71%为男性，约三分之二年龄在35至50岁之间，89%已婚。牙医们总共育有768个孩子；约21%没有孩子。在所有孩子中，54%为男孩（总体性别比=1.17）。男性牙医的后代性别比为1.13，女性牙医为1.50，父母双方均为牙医时为1.44。女性牙医、年轻牙医和普通牙科从业者中男孩的比例更高（p<0.008）。
在本研究中，人口统计学和执业相关因素对牙医子女的性别比例有一定影响。然而，该结果需要在进一步研究中进行评估。
