TY - JOUR
T1 - Elevated Glycated Hemoglobin Is Associated with Reduced Antibody Responses to Vaccinations in Children
AU - Huang, Jenny
AU - Kaur, Bani
AU - Farooqi, Ahmad
AU - Miah, Tayaba
AU - McGrath, Eric
AU - Seth, Divya
AU - Secord, Elizabeth
AU - Poowuttikul, Pavadee
N1 - Funding Information:
All phases of this study were supported by the Children's Hospital of Michigan Foundation, Grant # R2-2017-11.
Funding Information:
All phases of this study were supported by the Children’s Hospital of Michigan Foundation, Grant # R2-2017-11.
Publisher Copyright:
© 2020, Mary Ann Liebert, Inc., publishers.
PY - 2020/12
Y1 - 2020/12
N2 - Background: Childhood obesity is a major health concern, and it is associated with an increased risk of infectious morbidity. Previous studies found a decrease in protective antibody titers in obese adults after hepatitis B, influenza, and tetanus vaccination. Objective: We aimed at determining whether obesity or abnormal hemoglobin A1C (HBA1C) levels are associated with altered antibody responses in children. Methods: Children (8-18 years) who have completed routine childhood immunization were recruited. Serum samples were tested by the enzyme-linked immunosorbent assay method for antibody levels to Diphtheria, Tetanus, Haemophilus influenzae type B (HIB), and Streptococcus pneumoniae, along with serum HBA1C levels. An electronic medical record review on the frequency of emergency visits for infection was conducted. Spearman rank correlation, Fisher-exact, and Pearson's Chi-squared tests were used for statistical analysis. Results: There was an overall negative correlation between body mass index (BMI) percentile and the majority of pneumococcal subtypes, Diphtheria and Tetanus titers, although not statistically significant. There was a statistically significant negative correlation between HBA1C level and the S. pneumoniae serotype P9N (P = 0.037), P4 (P = 0.017), P12 (P = 0.023), P19F (P = 0.050), and HIB (P = 0.001). On average, individuals with elevated HBA1C levels had more frequent emergency room visits for infection (P = 0.029) and more viral infections (P = 0.023) as compared with children with normal HBA1C. Conclusion: Children with higher HBA1C levels were more likely to have lower pneumococcal and HIB titers and increased rates of emergency room visits for infection in a prospective, population-based cohort study. Although not statistically significant, there was an overall negative correlation between BMI percentile and titers for routine childhood vaccines.
AB - Background: Childhood obesity is a major health concern, and it is associated with an increased risk of infectious morbidity. Previous studies found a decrease in protective antibody titers in obese adults after hepatitis B, influenza, and tetanus vaccination. Objective: We aimed at determining whether obesity or abnormal hemoglobin A1C (HBA1C) levels are associated with altered antibody responses in children. Methods: Children (8-18 years) who have completed routine childhood immunization were recruited. Serum samples were tested by the enzyme-linked immunosorbent assay method for antibody levels to Diphtheria, Tetanus, Haemophilus influenzae type B (HIB), and Streptococcus pneumoniae, along with serum HBA1C levels. An electronic medical record review on the frequency of emergency visits for infection was conducted. Spearman rank correlation, Fisher-exact, and Pearson's Chi-squared tests were used for statistical analysis. Results: There was an overall negative correlation between body mass index (BMI) percentile and the majority of pneumococcal subtypes, Diphtheria and Tetanus titers, although not statistically significant. There was a statistically significant negative correlation between HBA1C level and the S. pneumoniae serotype P9N (P = 0.037), P4 (P = 0.017), P12 (P = 0.023), P19F (P = 0.050), and HIB (P = 0.001). On average, individuals with elevated HBA1C levels had more frequent emergency room visits for infection (P = 0.029) and more viral infections (P = 0.023) as compared with children with normal HBA1C. Conclusion: Children with higher HBA1C levels were more likely to have lower pneumococcal and HIB titers and increased rates of emergency room visits for infection in a prospective, population-based cohort study. Although not statistically significant, there was an overall negative correlation between BMI percentile and titers for routine childhood vaccines.
KW - HBA1C
KW - obesity
KW - vaccination
KW - vaccine titers
UR - http://www.scopus.com/inward/record.url?scp=85098222522&partnerID=8YFLogxK
U2 - 10.1089/ped.2020.1160
DO - 10.1089/ped.2020.1160
M3 - Article
C2 - 35921562
AN - SCOPUS:85098222522
VL - 33
SP - 193
EP - 198
JO - Pediatric, Allergy, Immunology, and Pulmonology
JF - Pediatric, Allergy, Immunology, and Pulmonology
SN - 2151-321X
IS - 4
ER -