Key Takeaways
- In 2022, the global under-five mortality rate stood at 37 deaths per 1,000 live births, with infant mortality accounting for approximately 70% of these deaths
- The World Health Organization reports that in 2023, an estimated 2.3 million infants died within their first year of life worldwide
- Globally, the infant mortality rate declined from 93 deaths per 1,000 live births in 1990 to 28 in 2022, representing a 70% reduction
- In the United States, the infant mortality rate in 2022 was 5.6 deaths per 1,000 live births, up from 5.4 in 2021
- For 2021, US neonatal mortality rate was 3.6 per 1,000 live births, accounting for 64% of infant deaths
- Black infants in the US had an infant mortality rate of 10.9 per 1,000 in 2022, 2.4 times higher than White infants at 4.5
- Nigeria's infant mortality rate was 72.2 deaths per 1,000 live births in 2022
- India's infant mortality rate reached 25.5 per 1,000 in 2022, down from 56 in 2000
- In Pakistan, infant mortality was 55.7 per 1,000 live births in 2022
- Preterm birth complications are the leading cause of infant death globally, responsible for 1 million deaths annually
- Congenital anomalies cause about 20% of infant deaths in high-income countries
- Asphyxia and birth trauma account for 24% of neonatal deaths worldwide
- Maternal obesity increases infant death risk by 20% from complications
- Low maternal education correlates with 50% higher infant mortality odds
- Poverty raises infant mortality risk by 4-fold in low-income settings
Global infant mortality rates show significant progress but remain tragically high and uneven worldwide.
Causes of Death
- Preterm birth complications are the leading cause of infant death globally, responsible for 1 million deaths annually
- Congenital anomalies cause about 20% of infant deaths in high-income countries
- Asphyxia and birth trauma account for 24% of neonatal deaths worldwide
- Infections/sepsis contribute to 25% of neonatal infant deaths globally
- Sudden Infant Death Syndrome (SIDS) causes 5-10% of postneonatal deaths in developed nations
- Pneumonia leads to 15% of under-one deaths in low-income countries
- Diarrhoea causes 9% of infant deaths, mostly preventable with ORS
- Malaria kills over 200,000 infants under one yearly in Africa
- Respiratory distress syndrome from prematurity causes 10% of neonatal deaths
- Intrauterine growth restriction leads to 20% of stillbirths and many infant deaths
- Bacterial meningitis causes 5% of neonatal sepsis deaths
- Congenital heart defects account for 25% of congenital anomaly infant deaths
- Necrotizing enterocolitis kills 10-20% of preterm infants affected
- Hypoxic-ischemic encephalopathy from birth asphyxia causes 15% neonatal deaths
- Tetanus neonatorum, though reduced, still kills thousands yearly
- In US, disorders related to short gestation/low birthweight cause 35% infant deaths
- Unintentional suffocation in bed is leading cause of SUID at 70% of cases
- Omphalitis (umbilical infection) causes 7% neonatal deaths in South Asia
- Jaundice/kernicterus leads to 4% neonatal deaths globally
- HIV mother-to-child transmission causes 90,000 infant deaths yearly
- Measles kills 50,000 infants under one annually despite vaccines
- Pertussis (whooping cough) causes 160,000 infant deaths yearly
- In preterm infants, intraventricular hemorrhage causes 15% deaths
- Sepsis from group B strep infects 1 in 500 US newborns, mortality 5-10%
- Patent ductus arteriosus complications in preterms lead to 5% deaths
- Low birthweight babies have 10x higher mortality risk from infections
- Maternal haemorrhage indirectly causes 20% neonatal deaths via poor care
- Retinopathy of prematurity blinds and kills some preterms indirectly
- Inadequate immunization leads to 2% of infant deaths from vaccine-preventable diseases
- Twins have 5x higher risk of death from prematurity-related causes
Causes of Death Interpretation
Global Statistics
- In 2022, the global under-five mortality rate stood at 37 deaths per 1,000 live births, with infant mortality accounting for approximately 70% of these deaths
- The World Health Organization reports that in 2023, an estimated 2.3 million infants died within their first year of life worldwide
- Globally, the infant mortality rate declined from 93 deaths per 1,000 live births in 1990 to 28 in 2022, representing a 70% reduction
- In 2021, neonatal deaths accounted for 47% of all under-five deaths globally, totaling about 1.9 million infant deaths in the first 28 days
- The Sustainable Development Goal target for infant mortality is fewer than 12 deaths per 1,000 live births by 2030, but 2022 global rate was 27
- Sub-Saharan Africa had the highest global infant mortality rate in 2022 at 71 deaths per 1,000 live births
- Globally, preterm birth complications caused 18% of infant deaths in 2022, equating to over 600,000 deaths
- In 2020, COVID-19 indirectly contributed to a 3.4 million excess infant deaths globally due to disrupted healthcare
- The global neonatal mortality rate in 2022 was 17 deaths per 1,000 live births
- From 2000 to 2022, global infant mortality fell by 59%, from 69 to 28 per 1,000 live births
- In low-income countries, infant mortality was 62 per 1,000 in 2022 versus 4 in high-income countries
- Globally, 2.4 million newborns died in 2022, mostly from preventable causes like infections
- Infant mortality rate globally projected to reach 25 per 1,000 by 2030 if trends continue
- In 2022, South Asia's infant mortality rate was 41 per 1,000 live births, second highest region
- Global progress stalled post-2015, with infant mortality reduction slowing to 2.2% annually from 3.7%
- Pneumonia caused 14% of global infant deaths in 2022, about 400,000 cases
- Diarrhoeal diseases led to 8% of infant deaths globally in 2022, totaling roughly 280,000
- Malaria accounted for 5% of infant mortality in endemic areas globally in 2022
- Globally, 99% of neonatal deaths occur in low- and middle-income countries
- In 2022, birth asphyxia and trauma caused 24% of neonatal deaths worldwide
- Global infant mortality gap between richest and poorest quintiles is 10-fold
- In 2023 estimates, 4.4 million babies died in their first month globally over the year
- Sepsis and infections cause 25% of global neonatal deaths annually
- Congenital anomalies represent 11% of infant deaths globally in recent data
- Globally, exclusive breastfeeding could prevent 13% of infant deaths under 6 months
- In 2022, 2 million infants died from pneumonia globally
- Global average infant mortality rate for boys was 29 per 1,000 vs 26 for girls in 2022
- HIV/AIDS caused less than 1% of global infant deaths in 2022 due to prevention efforts
- Road injuries contribute minimally to infant mortality globally at under 1%
- Drowning accounts for 5% of under-five deaths but less for infants specifically globally
Global Statistics Interpretation
Regional Variations
- Nigeria's infant mortality rate was 72.2 deaths per 1,000 live births in 2022
- India's infant mortality rate reached 25.5 per 1,000 in 2022, down from 56 in 2000
- In Pakistan, infant mortality was 55.7 per 1,000 live births in 2022
- Afghanistan reported 104.6 infant deaths per 1,000 in 2022, highest in Central Asia
- Brazil's rate was 12.4 per 1,000 in 2022
- Ethiopia's infant mortality stood at 43.5 per 1,000 live births in 2022
- DR Congo had 62.7 infant deaths per 1,000 in 2022
- Japan's rate was remarkably low at 1.9 per 1,000 in 2022
- South Africa's infant mortality was 25.9 per 1,000 in 2022
- Russia's rate was 5.3 per 1,000 live births in 2022
- In Angola, infant mortality reached 78.2 per 1,000 in 2022
- China's progress brought rate to 5.4 per 1,000 in 2022
- Somalia's estimated rate was 78.5 per 1,000 in 2022
- Mexico reported 11.8 infant deaths per 1,000 in 2022
- Chad's rate was 94.7 per 1,000 live births in 2022
- Finland had one of Europe's lowest at 1.9 per 1,000 in 2022
- Mali's infant mortality was 82.4 per 1,000 in 2022
- Indonesia's rate declined to 20.8 per 1,000 in 2022
- Central African Republic had 84.2 deaths per 1,000 infants in 2022
- Norway's rate was 1.8 per 1,000 in 2022
- Nigeria's northern regions had rates over 100 per 1,000 vs 50 in south in 2022
- In sub-Saharan Africa, rural infant mortality was 82 per 1,000 vs urban 53 in 2022
- Sweden's infant mortality rate was 2.1 per 1,000 in 2022
- Bangladesh reduced to 24.6 per 1,000 in 2022 from 87 in 2000
- Guinea-Bissau's rate was 92.5 per 1,000 in 2022
- South Korea achieved 2.4 per 1,000 in 2022
- Sierra Leone reported 72.1 infant deaths per 1,000 in 2022
- In Latin America, average infant mortality was 15 per 1,000 in 2022
- Mozambique's rate was 59.8 per 1,000 live births in 2022
- Iceland had the lowest global rate at 1.5 per 1,000 in 2022
Regional Variations Interpretation
Risk Factors
- Maternal obesity increases infant death risk by 20% from complications
- Low maternal education correlates with 50% higher infant mortality odds
- Poverty raises infant mortality risk by 4-fold in low-income settings
- Teenage motherhood (<18) triples infant mortality risk globally
- No antenatal care increases neonatal death risk by 50%
- Maternal smoking during pregnancy doubles SIDS risk
- Low birthweight (<2500g) has 20x higher mortality than normal weight
- Multiple births increase infant death risk 5-7 times
- Rural residence elevates infant mortality by 30% vs urban
- Male infants have 10% higher mortality than females globally
- Maternal hypertension doubles preterm birth risk, leading to higher deaths
- Short birth spacing (<18 months) raises risk by 60%
- Drug use in pregnancy increases infant mortality by 3x in US
- Malnutrition in mothers causes 45% of child deaths indirectly
- HIV-positive mothers without ART have 20-30% transmission rate to infants
- Air pollution exposure increases infant pneumonia mortality by 20%
- Bed-sharing without safe practices triples SIDS risk
- Maternal diabetes raises congenital anomaly risk by 3-4x
- Unclean home delivery increases infection risk 10-fold
- Father's low education also correlates with 30% higher infant death risk
- Climate extremes like heatwaves raise infant mortality 15% in vulnerable areas
Risk Factors Interpretation
US National Statistics
- In the United States, the infant mortality rate in 2022 was 5.6 deaths per 1,000 live births, up from 5.4 in 2021
- For 2021, US neonatal mortality rate was 3.6 per 1,000 live births, accounting for 64% of infant deaths
- Black infants in the US had an infant mortality rate of 10.9 per 1,000 in 2022, 2.4 times higher than White infants at 4.5
- Preterm birth-related causes accounted for 16.6% of US infant deaths in 2021
- Congenital malformations caused 19.5% of infant deaths in the US in 2022
- Sudden Infant Death Syndrome (SIDS) rate in US was 0.35 per 1,000 live births in 2021
- US infant mortality rate for Native Americans was 9.1 per 1,000 in 2022
- Maternal age under 20 correlated with US infant mortality rate of 8.2 per 1,000 in 2021 data
- In 2022, US postneonatal mortality was 2.0 per 1,000 live births
- Hispanic US infants had infant mortality of 4.9 per 1,000 in 2022
- Accidents or unintentional injuries caused 4.7% of US infant deaths in 2021
- US infant mortality declined from 7.2 in 2000 to 5.6 in 2022, a 22% drop
- Bacterial sepsis caused 2.3% of US infant deaths in 2022
- In 2021, US infants of mothers without prenatal care had mortality rate 3 times higher
- Low birthweight (<2500g) associated with 66% of US infant deaths in 2022
- US infant mortality rate in non-metropolitan areas was 6.2 per 1,000 in 2021, higher than metro 5.4
- Respiratory distress syndrome caused 4.8% of US neonatal deaths in 2022
- In 2022, US infant mortality for Asian/Pacific Islanders was lowest at 3.5 per 1,000
- Maternal smoking linked to 13% higher US infant mortality risk in 2021 data
- US states with highest infant mortality in 2022: Mississippi 9.4, Louisiana 8.3 per 1,000
- Drug-related perinatal conditions caused 1.5% of US infant deaths in 2021
- US preterm birth rate of 10.4% in 2022 contributed to 35% of infant deaths
- Inadequate prenatal care associated with 25% higher US infant mortality in 2022
- US infant mortality due to influenza and pneumonia was 0.4% in 2021
- Twins in US had infant mortality rate of 26.3 per 1,000 in 2022 vs 4.8 for singletons
- In 2022, California reported 4.1 infant deaths per 1,000 live births
- Homicide caused 0.8% of US postneonatal deaths in 2021
US National Statistics Interpretation
Sources & References
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