Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Accurate measurements needed for pregnant women

Accurate height and weight measurement necessary to reduce risk for pregnant women


A study by the University of Otago shows there are inaccuracies being made in the documented height and weight of pregnant women at the time of their 12-week scan, which could change clinical risk assessments for women.


The research found that heights and weights recorded at the time of the scan differed from the women’s actual measurements resulting in 69% of the 248 women who participated having an under-reported BMI, 6% a correctly reported BMI, and 25% an over-reported BMI.

As a result 17% of participants would have been incorrectly classified by BMI category when compared with measured data, according to the study, which appears in this week’s edition of the New Zealand Medical Journal.

Height and weight are important measures for maternity care as they are used to assess risk during pregnancy and labour. Inaccurate height and weight will affect the first trimester combined screening for Down syndrome and other conditions, and could lead to a suboptimal screen.

They are also used in the calculation of customised growth charts which assess the baby’s progress—potentially leading to missed high-risk pregnancies—and in determining the recommended amount of weight gain.

“To improve care we need to ensure that women and lead maternity carers (LMCs) have access to accurate scales that can measure more than the standard 120kg,” says researcher and consultant obstetrician and gynaecologist, Dr Helen Paterson.

“A logical option to improve the first trimester combined screening would be to have calibrated scales available in laboratories where women have their blood samples taken.”

In 2012 the Perinatal and Maternal Mortality Review Committee recommended that all women should be advised on healthy weight gain based on international guidelines to avoid possible complications in pregnancy.

Research shows that excessive weight gain during pregnancy is associated with increased risk of hypertension, gestational diabetes, potentially serious complications during labour, and subsequent maternal and child obesity.

Dr Paterson says: “It’s a concern that along with an increasing problem with excess weight and obesity in New Zealand, we have unreliable height and weight data on which to make clinical decisions.”

The study supports the New Zealand College of Midwives’ recommendation that all women of childbearing age must have their height and weight accurately measured and documented, and BMI calculated at a woman’s first visit, ideally before ten weeks of pregnancy.

This study was funded by the University of Otago.

Ends

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Trade Agreements: TPP Minus US Starting To Gain Ground

The Japanese government is picking up the pace on reviving the Trans-Pacific Partnership trade and investment deal, with talks scheduled next month among the 11 countries left in the pact after the withdrawal by the US after the election of president Donald Trump. More>>

ALSO:

PACER:

Prices Up 2.2%: Annual Inflation Highest In Over Five Years

"Rising petrol prices along with the annual rise in cigarette and tobacco tax lifted inflation," prices senior manager Jason Attewell said. "Petrol prices in New Zealand are closely linked to global oil prices, and cigarettes and tobacco taxes rise in the March quarter each year". More>>

ALSO:

Undertaxed? NZ Income Tax Rate Second Lowest Among Developed Nations

New Zealand workers pay the second smallest portion of their income to the government among developed nations and less than half the average ratio of their Organisation for Economic Cooperation and Development peers. More>>

ALSO:

Cyclone Cook: Round Up Of This Week’s Weather

One of the significant impacts this week was flooding due to excessive rainfall amounts. Rainfall amounts topped out at 350mm over the past 60 hours in parts of northwest Nelson, with 200mm+ measurements recorded about Coromandel Peninsula, and between 150-200mm in the Kaimai Ranges. Rainfall amounts of between 30-50mm were commonplace elsewhere. More>>

ALSO:

Earlier: Batten Down The Hatches For Cyclone Cook

Although fast-moving, Cyclone Cook will be destructive and MetService Expert Meteorologists have issued Severe Wind Warnings for the whole of the North Island apart from Northland... More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news