Lower Risk for Dementia Following Adult Tetanus, Diphtheria, and Pertussis (Tdap) Vaccination
© The Author(s) 2021. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissionsoup.com..
BACKGROUND: Adult vaccinations may reduce risk for dementia. However, it has not been established whether tetanus, diphtheria, pertussis (Tdap) vaccination is associated with incident dementia.
METHODS: Hypotheses were tested in a Veterans Health Affairs (VHA) cohort and replicated in a MarketScan medical claims cohort. Patients were at least 65 years of age and free of dementia for 2 years prior to index date. Patients either had or did not have a Tdap vaccination by the start of either of the 2 index periods (2011 or 2012). Follow-up continued through 2018. Controls had no Tdap vaccination for the duration of follow-up. Confounding was controlled using entropy balancing. Competing risk (VHA) and Cox proportional hazard (MarketScan) models estimated the association between Tdap vaccination and incident dementia in all patients and age subgroups (65-69, 70-74, and ≥75 years).
RESULTS: VHA patients were, on average, 75.6 (SD ± 7.5) years of age, 4% female, and 91.2% were White. MarketScan patients were 69.8 (SD ± 5.6) years of age, on average and 65.4% were female. After controlling for confounding, patients with, compared to without, Tdap vaccination had a significantly lower risk for dementia in both cohorts (VHA: hazard ratio [HR] = 0.58; 95% confidence interval [CI]:0.54-0.63 and MarketScan: HR = 0.58; 95% CI:0.48-0.70).
CONCLUSIONS: Tdap vaccination was associated with a 42% lower dementia risk in 2 cohorts with different clinical and sociodemographic characteristics. Several vaccine types are linked to decreased dementia risk, suggesting that these associations are due to nonspecific effects on inflammation rather than vaccine-induced pathogen-specific protective effects.
| Errataetall: |
CommentIn: J Gerontol A Biol Sci Med Sci. 2021 Sep 13;76(10):e235-e236. - PMID 34245285 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:76 |
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| Enthalten in: |
The journals of gerontology. Series A, Biological sciences and medical sciences - 76(2021), 8 vom: 13. Juli, Seite 1436-1443 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Scherrer, Jeffrey F [VerfasserIn] |
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| Links: |
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| Themen: |
Cohort |
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| Anmerkungen: |
Date Completed 20.10.2021 Date Revised 15.11.2021 published: Print CommentIn: J Gerontol A Biol Sci Med Sci. 2021 Sep 13;76(10):e235-e236. - PMID 34245285 Citation Status MEDLINE |
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| doi: |
10.1093/gerona/glab115 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM324108133 |
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| 245 | 1 | 0 | |a Lower Risk for Dementia Following Adult Tetanus, Diphtheria, and Pertussis (Tdap) Vaccination |
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| 500 | |a CommentIn: J Gerontol A Biol Sci Med Sci. 2021 Sep 13;76(10):e235-e236. - PMID 34245285 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © The Author(s) 2021. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissionsoup.com. | ||
| 520 | |a BACKGROUND: Adult vaccinations may reduce risk for dementia. However, it has not been established whether tetanus, diphtheria, pertussis (Tdap) vaccination is associated with incident dementia | ||
| 520 | |a METHODS: Hypotheses were tested in a Veterans Health Affairs (VHA) cohort and replicated in a MarketScan medical claims cohort. Patients were at least 65 years of age and free of dementia for 2 years prior to index date. Patients either had or did not have a Tdap vaccination by the start of either of the 2 index periods (2011 or 2012). Follow-up continued through 2018. Controls had no Tdap vaccination for the duration of follow-up. Confounding was controlled using entropy balancing. Competing risk (VHA) and Cox proportional hazard (MarketScan) models estimated the association between Tdap vaccination and incident dementia in all patients and age subgroups (65-69, 70-74, and ≥75 years) | ||
| 520 | |a RESULTS: VHA patients were, on average, 75.6 (SD ± 7.5) years of age, 4% female, and 91.2% were White. MarketScan patients were 69.8 (SD ± 5.6) years of age, on average and 65.4% were female. After controlling for confounding, patients with, compared to without, Tdap vaccination had a significantly lower risk for dementia in both cohorts (VHA: hazard ratio [HR] = 0.58; 95% confidence interval [CI]:0.54-0.63 and MarketScan: HR = 0.58; 95% CI:0.48-0.70) | ||
| 520 | |a CONCLUSIONS: Tdap vaccination was associated with a 42% lower dementia risk in 2 cohorts with different clinical and sociodemographic characteristics. Several vaccine types are linked to decreased dementia risk, suggesting that these associations are due to nonspecific effects on inflammation rather than vaccine-induced pathogen-specific protective effects | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Research Support, U.S. Gov't, Non-P.H.S. | |
| 650 | 4 | |a Cohort | |
| 650 | 4 | |a Dementia | |
| 650 | 4 | |a Epidemiology | |
| 650 | 4 | |a Tdap | |
| 650 | 4 | |a Vaccination | |
| 650 | 7 | |a Diphtheria-Tetanus-acellular Pertussis Vaccines |2 NLM | |
| 700 | 1 | |a Salas, Joanne |e verfasserin |4 aut | |
| 700 | 1 | |a Wiemken, Timothy L |e verfasserin |4 aut | |
| 700 | 1 | |a Jacobs, Christine |e verfasserin |4 aut | |
| 700 | 1 | |a Morley, John E |e verfasserin |4 aut | |
| 700 | 1 | |a Hoft, Daniel F |e verfasserin |4 aut | |
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