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- Bergman, Eva, 1959-, et al.
(författare)
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Relative growth estimated from self-administered symphysis fundal measurements
- 2011
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : Wiley. - 0001-6349 .- 1600-0412. ; 90:2, s. 179-185
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To establish absolute-and relative-growth reference curves for the detection of intrauterine growth restriction from weekly self-administered symphysis-fundus (SF) measurements and to assess the influence of fetal sex, maternal obesity and parity. Design. Prospective longitudinal study. Setting. Pregnant women from six primary antenatal care centres. Population. Three hundred women with singleton ultrasound dated pregnancies. Methods. Weekly self-administered SF measurements from gestational week 25 until delivery were obtained. A linear mixed longitudinal model was used to estimate the absolute SF growth using the natural logarithm (lnSF). Relative lnSF growth was calculated as the lnSF measurement in one gestational week subtracted by the lnSF measurement in the previous gestational week. The influence of fetal sex, maternal obesity and parity was assessed in regression models and by a graphical display. Main Outcome Measures. Absolute lnSF and relative lnSF growth curves and influence of fetal sex, maternal obesity and parity on these. Results. SF measurements from 191 women were used to establish an SF-growth reference. The absolute lnSF growth was influenced by maternal obesity, and for fetal sex and parity, borderline significance was recorded; while there was no evidence that the relative lnSF growth could depend on these variables. Conclusions. Weekly self-administered SF measurements can be obtained and used to estimate SF growth. Relative growth of the lnSF height seems to be independent of fetal sex, maternal obesity and parity.
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| 2. |
- Bergman, Eva, 1959-, et al.
(författare)
-
Self-administered symphysis-fundus measurements analyzed with a novel statistical method for detection of intrauterine growth restriction : a clinical evaluation
- 2011
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : Wiley. - 0001-6349 .- 1600-0412. ; 90:8, s. 890-896
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To assess the ability of self-administered symphysis fundus measurements used with the Shiryaev-Roberts statistical method (SR method) to identify growth-restricted (IUGR) fetuses and compare it with the traditional SF method (symphysis fundus measurements used with a population-based reference curve). Design. Longitudinal study. Setting. Pregnant women attending primary antenatal care centres. Population. From a population of 1 888 women with singleton ultrasound-dated pregnancies, we analyzed data from 1 122 women. Methods. Weekly self-administered SF measurements from gestational week 25 until delivery were analyzed according to the SR method. Neonatal morbidity and small for gestational age (SGA) were used as proxies for IUGR. Small for gestational age was defined as a birthweight less than two standard deviations (SD) and <10th percentile. We assessed the sensitivity of the SR and the SF methods to detect neonatal morbidity and SGA. Main Outcome Measures. Birth-related mortality, respiratory distress, hypoglycemia, Apgar score <= 6 at five minutes, pH <= 7.00 in the umbilical artery, neonatal care, preterm delivery, operative delivery for fetal distress and SGA. Results. For the SR method, the sensitivity for neonatal morbidity was between 6.0 and 36.4%, for SGA <2SD 36.8%, and for SGA <10th percentile 20.9%. The SF method had a sensitivity between 6.0 and 13.8% for neonatal morbidity, 52.3% for SGA <2SD and 28.6% for SGA <10th percentile. Conclusions. The SR and the SF methods had low sensitivities for neonatal morbidity.
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