The reproductive characteristic of the tatarpopulation of Tatarstan
The reproductive characteristic of the population of the studied region is an integral part of complex medical and genetic population research which is carried out by staff of laboratory of genetic epidemiology of FSBI MGNC RAMN in the Republic of Tatarstan according to the developed protocol. Research is carried out in seven regions of Tatarstan - Arsky, Atninsky, Kukmorsky, Buinsky, Drozhzhanovsky, Aktanyshsky, Muslyumovsky. Questioning of women of post-reproductive age was carried out at our request by employees of local health care service. There are 1449 questionnaires received during the Tatar women interviewing entered in the analysis. In this work we carry out the analysis of these indicators for the Tatar population, first, depending on urbanization degree (rural people of areas, rural people of districts and urban population), secondly, various subethnic groups of Tatars (Mishars, Teptiars, the Kazan Tatars) and, thirdly, we consider their temporary dynamics (questionnaires of women before 1940th year of birth, 1940-1949, 1950-1959, 1960 and younger). The average number of persons up to a reproduction allows to estimate the reproduction character of the rural Tatar people as expanded (2.66), and the reproductive character of districts and urban populations is a simple reproduction (2.13 and 2.29, respectively). The maximum size of the sibs among rural people of three ethnic subgroups is fixed at Mishars (2.86), at the Kazan Tatars and Teptiars below (2.59 and 2.65, respectively). During questionnaires division of rural Tatar women into four age groups according to the year of birth monotonous decrease of birth rate is marked (3.72, 3.36, 2.70, 2.39) and, respectively, the size of a sibs (3.68, 3.24, 2.62, 2.34), showing transition from expanded nature of reproduction in the senior age group (before 1940) is revealed to simple in a younger group (1960 and later). Crowe’s index and its components in the considered groups of the Tatar population made: for rural people of regions of I <sub>m</sub>=0.025, I <sub>f</sub>=0.184, I <sub>tot</sub>=0.214; for rural people of districts of I <sub>m</sub>=0.018, I <sub>f</sub>=0.168, I <sub>tot</sub>=0.188; for urban population of I <sub>m</sub>=0.024, I <sub>f</sub>=0.214, I <sub>tot</sub>=0.244; for the Kazan Tatars of I <sub>m</sub>=0.017, I <sub>f</sub>=0.184, I <sub>tot</sub>=0.204; for Mishars I <sub>m</sub>=0.045, I <sub>f</sub>=0.184, I <sub>tot</sub>=0.237; for Teptiars I <sub>m</sub>=0.023, I <sub>f</sub>=0.184, I <sub>tot</sub>=0.212; for women to 1940 I <sub>m</sub>=0.010, I <sub>f</sub>=0.188, I <sub>tot</sub>=0.199; for 1940-1949 I <sub>m</sub>=0.036, I <sub>f</sub>=0.153, I <sub>tot</sub>=0.194; for 1950-1959 I <sub>m</sub>=0.032, I <sub>f</sub>=0.158, I <sub>tot</sub>=0.195; for 1960 and after I <sub>m</sub>=0.018, I <sub>f</sub>=0.136, I <sub>tot</sub>=0.157.