Dating gestational age by last menstrual period, symphysis-fundal height, and ultrasound in urban Pakistan

Imtiaz Jehan, Shahida Zaidi, Sameera Rizvi, Naushaba Mobeen, Elizabeth M. McClure, Breda Munoz, Omrana Pasha, Linda L. Wright, Robert L. Goldenberg

Research output: Contribution to journalArticle

Abstract

Objective: To compare the accuracy of the reported date of the last menstrual period (LMP) with that of symphysis-fundal height (SFH) in the estimation of gestational age (GA), using an ultrasound (US) scan as reference. Methods: Gestational age was concurrently assessed by the 3 methods in this prospective, population-based, pregnancy-outcome study conducted in Hyderabad, Pakistan, from June 18, 2003, through August 31, 2005, with 1128 women between 20 and 26 weeks of a singleton pregnancy. Results: The mean GA was less by ultrasound than by SFH measurement or the reported LMP, and the mean differences with the US result were statistically significant (P < 0.001 for both). At delivery, about 75% of the GA values estimated by SFH measurement were within 7 days and almost 91% were within 14 days of the estimation by ultrasound, compared with 65% and 82% for the GA estimated by the reported LMP. Moreover, using the US as reference, the SFH correctly classified 84% of the term, 68% of the preterm, and 86% of the post-term deliveries (weighted κ = 0.58) compared with the corresponding 79%, 61%, and 55% predicted by the reported LMP (weighted κ = 0.44). Conclusion: The SFH measurement was found to be more accurate than the reported LMP as a tool to estimate GA and therefore date of delivery, but neither were as accurate as a US scan.

Original languageEnglish (US)
Pages (from-to)231-234
Number of pages4
JournalInternational Journal of Gynecology and Obstetrics
Volume110
Issue number3
DOIs
StatePublished - Sep 2010
Externally publishedYes

Fingerprint

Pakistan
Gestational Age
Pregnancy Outcome
Outcome Assessment (Health Care)
Pregnancy
Population

Keywords

  • Gestational age
  • Last menstrual period
  • Pakistan
  • Symphysis-fundal height
  • Ultrasound

ASJC Scopus subject areas

  • Obstetrics and Gynecology

Cite this

Dating gestational age by last menstrual period, symphysis-fundal height, and ultrasound in urban Pakistan. / Jehan, Imtiaz; Zaidi, Shahida; Rizvi, Sameera; Mobeen, Naushaba; McClure, Elizabeth M.; Munoz, Breda; Pasha, Omrana; Wright, Linda L.; Goldenberg, Robert L.

In: International Journal of Gynecology and Obstetrics, Vol. 110, No. 3, 09.2010, p. 231-234.

Research output: Contribution to journalArticle

Jehan, I, Zaidi, S, Rizvi, S, Mobeen, N, McClure, EM, Munoz, B, Pasha, O, Wright, LL & Goldenberg, RL 2010, 'Dating gestational age by last menstrual period, symphysis-fundal height, and ultrasound in urban Pakistan', International Journal of Gynecology and Obstetrics, vol. 110, no. 3, pp. 231-234. https://doi.org/10.1016/j.ijgo.2010.03.030
Jehan, Imtiaz ; Zaidi, Shahida ; Rizvi, Sameera ; Mobeen, Naushaba ; McClure, Elizabeth M. ; Munoz, Breda ; Pasha, Omrana ; Wright, Linda L. ; Goldenberg, Robert L. / Dating gestational age by last menstrual period, symphysis-fundal height, and ultrasound in urban Pakistan. In: International Journal of Gynecology and Obstetrics. 2010 ; Vol. 110, No. 3. pp. 231-234.
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