Equations to estimate fetal age at the moment of death in the Mexican population.
Metric standards are presented for the estimation of fetal age at the time of death in the Mexican population. To obtain these standards, both metric and radiological studies were conducted on 97 fetuses and complete stillborn infants of both sexes, phenotypically normal between 10 and 38 weeks of morphological age. All the fetuses used were the product of spontaneous abortions in Mexico City between 1990 and 2000. Equations were obtained by calibrating quadratic linear regression models adjusted for the diaphyseal length of the humerus, radius, ulna, femur, tibia and fibula, characterized as the most adequate indicators to represent the growth of long bones in this age group, and verified by the evaluation of the model assumptions and the coefficient of determination (R(2)). To conclude, these models facilitate a more precise prediction in fetuses of the Mexican population, constituting the first metric standards of their type at a national level.
National School of Antropologia and History, Zapote s/n, Isidro Fabela, Tlalpan, Mexico, D.F., Mexico. Electronic address: perla.chm@hotmail.com.
Perla
P
Chávez-Martínez
Physical Anthropology Department. National School of Antropologia and History, Zapote s/n, Isidro Fabela, Tlalpan, Mexico, D.F., Mexico. Electronic address: tinaorpa@hotmail.com.
Albertina
A
Ortega-Palma
Physical Anthropology Department. National School of Antropologia and History, Zapote s/n, Isidro Fabela, Tlalpan, Mexico, D.F., Mexico. Electronic address: ljcastrejon@gmail.com.
José Luis
JL
Castrejón-Caballero
Anatomy Department, National Autonomous University of Mexico, Mexico. Electronic address: manuelarteagamartinez@hotmail.com.
Manuel
M
Arteaga-Martínez
D000022:Abortion, Spontaneous; D001842:Bone and Bones / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D018483:Diaphyses / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005260:Female; D005313:Fetal Death; D005333:Fetus / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005865:Gestational Age; D006801:Humans; D016014:Linear Models; D008297:Male; D008800:Mexico; D011247:Pregnancy; D044469:Racial Groups; D015203:Reproducibility of Results
Diaphyseal length; Fetal age; Forensic Anthropology Population Data; Forensic anthropology; Forensic sciences; Quadratic linear regression