Sentence examples for methods of gestational from inspiring English sources

The objective of the study was to examine the rate of preterm birth in the United States using 2 different methods of gestational age assignment and determine which method more closely correlates with the known morbidities associated with preterm birth.

Other challenges include the need for addressing temporal changes in methods of gestational age ascertainment (menstrual-based versus ultrasound-based).

The variation we demonstrated is also unlikely to be due to different calculation methods of gestational age between PCTs with the increasing use of obstetric dating scans.

Gestational age was taken from the provided NCHS variable; this variable combines multiple methods of gestational estimation depending on available data.

In a subset of the data we were also able to assess the same set of gestational age specific deaths using two different methods of gestational age estimation at a time when ultrasound was well established, contrary to many other publications on the issue [ 7- 9, 19- 21].

Gestational age was based on the duration between the last menstrual period and the delivery if it was consistent with the neonatal physical examination of the infant and based on the neonatal physical examination in cases where the discrepancy between the 2 methods of gestational age ascertainment was 3 weeks or greater.

When analyzing implications of post-term pregnancy, the method of gestational age estimation is crucial.

Twenty-three NYC subjects, whose method of gestational age calculation is unknown, were not included in this analysis.

Perinatal death risk in prolonged and post-term pregnancies was strongly associated with SGA, independent of time period and method of gestational age estimation.

Table  4 shows ORs of perinatal death by gestational week, SGA status and method of gestational age estimation (LMP and ultrasound) in a sub-set of the total cohort (1999 2006).

We aimed at assessing gestational week specific perinatal mortality in small-for-gestational-age (SGA) and non-SGA term and post-term gestations, and specifically to evaluate whether the relation between post-term gestation and perinatal mortality differed before and after ultrasound was introduced as the standard method of gestational age estimation.