A study conducted in Eastern Uganda found that Ugandan children whose mothers had some secondary schooling were 50% more likely to have received scheduled vaccinations by 6 months of age than children whose mothers had attended school only through primary level. This effect became more pronounced with delivery of the later doses of each vaccine (OPV2, 3 & DPT-HB-Hib 2,3).
Diphtheria
A women’s empowerment program was associated with higher rates of immunization among children
An impact evaluation for a women’s empowerment program in India found that the children of mothers who participated the empowerment program were significantly more likely to be vaccinated against DTP, measles, and tuberculosis than children of mothers not involved in the program. This study also found that the women’s empowerment program had positive spillover effects: In villages where the program occurred, children of mothers not in the program (non-participants) were 9 to 32% more likely to be immunized against measles than in villages where the program did not occur (controls). Overall, measles vaccine coverage was nearly 25% higher in the program villages compared to the control villages.
Globally, children living in urban areas are more likely to be fully immunized than children living in rural areas
Globally, coverage of the third dose of DTP is 8% higher among urban dwellers compared to children raised in a rural environment.
Globally, children of more educated mothers are more likely to be fully immunized
A study looking at WHO data from member states shows that globally, coverage of the third dose of DTP is 26% higher among children born to mothers with some secondary education compared to mothers with no education.
Wealth disparities impact vaccination rates, particularly in low-income countries
Globally, coverage of the third dose of DTP is 15% higher among children in the highest compared to lowest wealth quintile. However, this masks differences of up to 64% in the most inequitable countries (Nigeria).
Vaccinated children are far less likely to experience stunting compared to unimmunized children
A study in Kenya revealed that immunization with polio, BCG, DPT and measles had protective effects with respect to stunting in children under 5 years of age. In children under the age of 2 years, immunized children were 27% less likely to experience stunting when compared to unimmunized children. Additionally, children who suffered from cough or diarrhea in the 2 weeks prior to the study showed an 80-90% higher probability of being underweight or experiencing wasting.
Vaccination linked to higher IQ and language scores
Vaccination of children in the Philippines against 6 diseases was found to significantly increase IQ and language scores (compared to children receiving no vaccinations) and was estimated to have a 21% rate of return.
Vaccinated children performed better on several cognitive tests
In a study of immunization in the Philippines, children vaccinated against 6 diseases performed significantly better on verbal reasoning, math, and language tests than those who were unvaccinated. (note: Researchers did not find an association with physical growth.)