Introduction:

growth charts and routine ultrasound are the gold standard to adequately assess the fetus. Fetal biometry tables, created with data from each population, are considered optimal and appropriate in order to use them as a reference and to timely identify malformations or growth deviations.

Objective:

to identify deviations from the increase norm in the following biometric variables: biparietal diameter, head circumference, abdominal circumference and femur length.

Methods:

a retrospective, longitudinal and analytical study was conducted in Villa Clara province between January 2013 and December 2017. The study population consisted of 6050 pregnant women. The selection of the sample was carried out through an intentional non-probabilistic sampling and was made up of 3910 pregnant women who meet the criteria established for the study. Data were obtained from genetic consultation record books from selected health areas. Summary measures were used for quantitative variables, means and percentiles (10, 50 and 90).

Results:

the real values obtained in the biparietal diameter, head circumference and femur length were lower than Hadlock in most weeks; abdominal circumference changed the behavior of the variables, since in this the superior values prevailed between the real ones obtained, mainly in the10th percentile.

Conclusions:

low percentiles of all variables in the first weeks had higher values than those of the Hadlock table, but in the fetal abdominal circumference, the local sample had higher values throughout the weeks.