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Birth weight and birth length affect future fracture risk differently in men and women

Moberg, Louise LU ; Jehpsson, Lars LU ; Nilsson, Peter M. LU and Rosengren, Björn LU (2024) In Osteoporosis International 35(10). p.1817-1829
Abstract

Summary: We wanted to determine if there are any associations between birth factors and adult fracture risk. For women only, shorter birth length was associated with lower relative fracture risk. For women and men, individuals who were long at birth as well as tall in adulthood had a substantially higher relative fracture risk. Purpose: We aimed to examine associations between birth anthropometry and adult fracture risk and to investigate if developmental mismatch is associated with fracture risk. Methods: We included 4635 participants (476 women and 4159 men; born 1921–1950) with hospital and national registry-based data on birth anthropometry and adult fractures (≥ 50 years). We tested associations by Cox proportional hazards... (More)

Summary: We wanted to determine if there are any associations between birth factors and adult fracture risk. For women only, shorter birth length was associated with lower relative fracture risk. For women and men, individuals who were long at birth as well as tall in adulthood had a substantially higher relative fracture risk. Purpose: We aimed to examine associations between birth anthropometry and adult fracture risk and to investigate if developmental mismatch is associated with fracture risk. Methods: We included 4635 participants (476 women and 4159 men; born 1921–1950) with hospital and national registry-based data on birth anthropometry and adult fractures (≥ 50 years). We tested associations by Cox proportional hazards regressions and present hazard ratios (HR) with 95% confidence intervals. Results: In total, 1215 (26%) suffered ≥ 1 fracture during a mean observation period of 26 years. In women, unadjusted analyses indicated that both higher birth weight (HR 1.42 per kg (1.10–1.84)) and birth length (1.10 per cm (1.05–1.17)) were associated to higher adult fracture risk. After adjustment (year of birth and gestational age), statistical significance remained only for birth length, HR 1.10 per cm (1.04–1.17). For men, no associations were apparent. We found no associations between developmental mismatch (lower birth weight followed by higher adult weight) and adult fracture risk. However, for both sexes, being born tall and staying tall into adulthood was associated with a markedly higher (55–105%) relative fracture risk (HR women 2.09 (1.18–3.68), men 1.55 (1.19–2.03)) compared to being born short and remaining short in adulthood. Conclusion: In this study, being born shorter and lighter was associated with a lower risk for fractures ≥ 50 years in women. However, analyses indicated that tall adults who were also long at birth may be at markedly higher risk of fractures; this warrants further examinations.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aging, Birth length, Birth weight, Epidemiology, Fracture risk, Osteoporosis
in
Osteoporosis International
volume
35
issue
10
pages
13 pages
publisher
Springer
external identifiers
  • scopus:85197532872
  • pmid:38967677
ISSN
0937-941X
DOI
10.1007/s00198-024-07172-8
language
English
LU publication?
yes
id
a5dc5752-603d-48c5-a2c7-9a807dacd327
date added to LUP
2024-12-12 10:53:19
date last changed
2025-07-11 03:59:30
@article{a5dc5752-603d-48c5-a2c7-9a807dacd327,
  abstract     = {{<p>Summary: We wanted to determine if there are any associations between birth factors and adult fracture risk. For women only, shorter birth length was associated with lower relative fracture risk. For women and men, individuals who were long at birth as well as tall in adulthood had a substantially higher relative fracture risk. Purpose: We aimed to examine associations between birth anthropometry and adult fracture risk and to investigate if developmental mismatch is associated with fracture risk. Methods: We included 4635 participants (476 women and 4159 men; born 1921–1950) with hospital and national registry-based data on birth anthropometry and adult fractures (≥ 50 years). We tested associations by Cox proportional hazards regressions and present hazard ratios (HR) with 95% confidence intervals. Results: In total, 1215 (26%) suffered ≥ 1 fracture during a mean observation period of 26 years. In women, unadjusted analyses indicated that both higher birth weight (HR 1.42 per kg (1.10–1.84)) and birth length (1.10 per cm (1.05–1.17)) were associated to higher adult fracture risk. After adjustment (year of birth and gestational age), statistical significance remained only for birth length, HR 1.10 per cm (1.04–1.17). For men, no associations were apparent. We found no associations between developmental mismatch (lower birth weight followed by higher adult weight) and adult fracture risk. However, for both sexes, being born tall and staying tall into adulthood was associated with a markedly higher (55–105%) relative fracture risk (HR women 2.09 (1.18–3.68), men 1.55 (1.19–2.03)) compared to being born short and remaining short in adulthood. Conclusion: In this study, being born shorter and lighter was associated with a lower risk for fractures ≥ 50 years in women. However, analyses indicated that tall adults who were also long at birth may be at markedly higher risk of fractures; this warrants further examinations.</p>}},
  author       = {{Moberg, Louise and Jehpsson, Lars and Nilsson, Peter M. and Rosengren, Björn}},
  issn         = {{0937-941X}},
  keywords     = {{Aging; Birth length; Birth weight; Epidemiology; Fracture risk; Osteoporosis}},
  language     = {{eng}},
  number       = {{10}},
  pages        = {{1817--1829}},
  publisher    = {{Springer}},
  series       = {{Osteoporosis International}},
  title        = {{Birth weight and birth length affect future fracture risk differently in men and women}},
  url          = {{http://dx.doi.org/10.1007/s00198-024-07172-8}},
  doi          = {{10.1007/s00198-024-07172-8}},
  volume       = {{35}},
  year         = {{2024}},
}