Edmund K. Brakohiapa1; Jerry Coleman2;
Eric
K. Ofori3; Tom A. Ndanu4
and William K. Antwi 5
1 Radiology Department, Korle-Bu
Teaching Hospital, Accra, Ghana
2 Department of Obstetrics and gynecology,
Korle-Bu Teaching Hospital, Accra,
Ghana
3, 5 Department of
Radiography, School of Allied Health
Sciences, University of Ghana
4University of Ghana Dental
School, Korle-Bu, Accra, Ghana
E-mail: ebrakohiapa2000@yahoo.com; jerryc714@yahoo.com; erikof2001@yahoo.co.uk
nutcaresoft@gmail.com; wkantwi@chs.edu.gh
ABSTRACT
The accurate
determination of the gestational age is important for proper management of the
various stages of the pregnancy since improper management could lead to an
increase in maternal and infant mortality. Gestational age could be determined
through ultrasonography, symphysio-fundal height (SFH) measurement or the use
of last menstrual period (LMP) recall. This study aimed to establish the
percentage of Ghanaian women who could accurately determine their gestational
age using their LMP. A retrospective study was conducted using data extracted
from 2089 ultrasound request forms and the corresponding radiological reports
of females who presented for antenatal sonographic evaluation in three
diagnostic centres in Accra, Ghana, from January 2007 to December 2008. Data collected was analyzed using the statistical
package for social scientists version 19. The mean, standard deviation and
range for the ages of the participants were 28.8
years ± 5.5, and 12 to 53 years respectively.
A total of 1269 (60.8 %) of the study population had their gestational
age based on LMP within the acceptable clinical range (±
2 weeks of the earliest accurately determined gestational age). The
study showed a significant difference (p-value = 0.001) between the LMP and
ultrasound based gestational ages.
However no significant difference was seen between age groups and the
differences in gestational ages (P = 0.300). The study also indicated
that there were more (32.3%) negative clinically unacceptable discrepancies than
positive discrepancies (6.9 %). The use of ultrasonography for the confirmation
of pregnancy and accurate determination of gestational age in the Ghanaian
community is imperative for proper management.
Key words: Last Menstrual Period, sonographic dating
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