Number of children and risk of dementia: a cohort study
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11120%2F25%3A43927749" target="_blank" >RIV/00216208:11120/25:43927749 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11130/25:10487778
Výsledek na webu
<a href="https://doi.org/10.1136/jech-2024-222717" target="_blank" >https://doi.org/10.1136/jech-2024-222717</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1136/jech-2024-222717" target="_blank" >10.1136/jech-2024-222717</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Number of children and risk of dementia: a cohort study
Popis výsledku v původním jazyce
BACKGROUND: Findings on the link between the number of children and dementia risk are inconsistent, mostly studied in females, suggesting pregnancy-related changes may be a key factor in this association. METHODS: The Adult Changes in Thought Study is a cohort of adults aged >=65 years from Kaiser Permanente Washington. The primary exposure was the number of children (0, 1, 2, 3 or >=4), and the outcome was an incident dementia diagnosis. Cox proportional-hazards models were adjusted for demographic and early-life socioeconomic confounders. Models were then stratified by sex and by birth year <1928 versus >=1928. RESULTS: Among 4668 participants (average age at enrolment 74.1+-SD 6.3 years; 59% female), 967 (21%) had 0 children, 484 (10%) had one child, 1240 (27%) had two children, 968 (21%) had three children and 1009 (22%) had four or more children. We found no association between the number of children and dementia overall or after stratification by birth cohort. When stratified by sex and adjusting for confounders, having >=4 children compared with two children was associated with a higher rate of dementia in males (HR=1.31, 95% CI 1.01 to 1.71). CONCLUSIONS: The number of children was not consistently associated with the risk of dementia. We observed a greater risk of dementia only among males who had >=4 children, with the lower bound of the 95% CI marginally exceeding 1. These findings suggest that the number of children may influence the risk of dementia through other than pregnancy-related pathways.
Název v anglickém jazyce
Number of children and risk of dementia: a cohort study
Popis výsledku anglicky
BACKGROUND: Findings on the link between the number of children and dementia risk are inconsistent, mostly studied in females, suggesting pregnancy-related changes may be a key factor in this association. METHODS: The Adult Changes in Thought Study is a cohort of adults aged >=65 years from Kaiser Permanente Washington. The primary exposure was the number of children (0, 1, 2, 3 or >=4), and the outcome was an incident dementia diagnosis. Cox proportional-hazards models were adjusted for demographic and early-life socioeconomic confounders. Models were then stratified by sex and by birth year <1928 versus >=1928. RESULTS: Among 4668 participants (average age at enrolment 74.1+-SD 6.3 years; 59% female), 967 (21%) had 0 children, 484 (10%) had one child, 1240 (27%) had two children, 968 (21%) had three children and 1009 (22%) had four or more children. We found no association between the number of children and dementia overall or after stratification by birth cohort. When stratified by sex and adjusting for confounders, having >=4 children compared with two children was associated with a higher rate of dementia in males (HR=1.31, 95% CI 1.01 to 1.71). CONCLUSIONS: The number of children was not consistently associated with the risk of dementia. We observed a greater risk of dementia only among males who had >=4 children, with the lower bound of the 95% CI marginally exceeding 1. These findings suggest that the number of children may influence the risk of dementia through other than pregnancy-related pathways.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
30304 - Public and environmental health
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Epidemiology and Community Health
ISSN
0143-005X
e-ISSN
1470-2738
Svazek periodika
79
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
8
Strana od-do
280-287
Kód UT WoS článku
001361819800001
EID výsledku v databázi Scopus
2-s2.0-85214488158