Author:
Musa Kana
(MENAFN- The Conversation)
Babies should ideally weigh . Birth weight is a of foetal and neonatal health. If a newborn weighs less than 2,500g – because they are preterm or their growth in the womb was restricted for some reason – they are of death, disability and noncommunicable diseases.
The low birth weight infant's tiny body is not as strong as it should be. The baby might struggle to gain weight and fight infection. And with so little body fat, these babies often have difficulty staying warm in normal temperatures.
Low birth weight is of infant morbidity and mortality in Nigeria.
The factors that are known to influence a baby's weight at birth duration of pregnancy, and maternal characteristics like age, parity (the number of times a woman has given birth) and illness, as well as adverse environmental exposures.
One factor that hasn't been studied much in Nigeria is the type of cooking fuel that the baby's mother uses or is exposed to during pregnancy. My research group suspected this might be a significant factor because of the high prevalence of low birth weight in Nigeria and the fact that biomass fuel is .
Nigeria where most preterm and small-for-gestational-age infants are born. , and 15% of these newborns have a low birth weight accounting for 25% of infant mortality.
Our explored the association between biomass cooking fuel and birth weight among full term births in Kaduna, northwestern Nigeria. We found there was a link – and this was supported by . Mothers in Kaduna who were exposed to biomass fuel gave birth to infants who were on average 113g lighter than those using liquefied petroleum gas, which is . Nationally, mothers using biomass had infants weighing 50g lower at birth than those using clean fuel.
Exposure to biomass fuel combustion during pregnancy foetal growth or increase preterm birth risk, resulting in a child born early or small for gestational age and thus creating further health risks for the child.
Biomass fuel includes wood, animal dung, charcoal and crop residues. It is used worldwide for cooking, heating and lighting. Biomass fuels and are still widely used in urban and rural Nigeria due to supply and demand issues driving household energy choices.
The study results show the importance of efforts to make safer fuel choices available.
Kaduna and national Nigerian data
Our study focused only on term infants because birth weight, and multiple factors influence preterm birth.
We conducted the primary analysis based on a study of 1,514 mother-child pairs in Kaduna, northwestern Nigeria. is the fourth largest city in Nigeria, with a population of 1.6 million.
To validate the primary analysis, we repeated it using data from 6,975 mother-child pairs in the most recent .
The primary analysis classified cooking fuel types as liquefied petroleum gas, kerosene and biomass fuel (including charcoal, wood, crops or straw, and animal dung). In the survey, cooking fuels were categorised into low pollution fuel (electricity, liquefied petroleum gas and natural gas), kerosene and biomass fuel.
In both analyses, we observed that the impact of biomass use on birth weight was greater than the impact of liquefied petroleum gas or kerosene.
The results highlight the need for public health intervention. Reducing adverse birth outcomes like low birth weight will depend on addressing regional disparities in the key determinants.
Our results showed that birth order, household size, and socio-economic status influenced cooking fuel choice, which is consistent with . It is reasonable that the women least able to use clean cooking fuels will be those who:
- live in households of five or more people
- live in poorer households
- have given birth at least once before.
This could be due to cost and unreliable fuel supply. Women with more children or living in larger households might also cook with bigger pots, requiring longer cooking times, which increases their exposure to indoor air pollution from biomass fuel use.
Recommendations
We recommend that pregnant women attending antenatal care be asked about cooking fuels and given help to minimise prenatal biomass exposure. Some recent intervention trials conducted in low- and middle-income countries, including Nigeria, have shown that transition from biomass fuel to cleaner fuels reduces air pollution and .
Interventions to reduce indoor air pollution could include a stove subsidy, fuel subsidy, fuel ban and behaviour change communication.
It's important first to understand why a household uses a particular cooking fuel.
It is also vital to from other household health interventions, such as sanitation and nutrition. These can enhance an understanding of what bars or enables adoption of a new method.
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