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Smoking and Alcohol Intake but Not Muscle Strength in Young Men Increase Fracture Risk at Middle Age : A Cohort Study Linked to the Swedish National Patient Registry

Prieto-Alhambra, Daniel ; Turkiewicz, Aleksandra LU ; Reyes, Carlen ; Timpka, Simon LU orcid ; Rosengren, Björn LU and Englund, Martin LU orcid (2020) In Journal of Bone and Mineral Research 35(3). p.498-504
Abstract

We aimed to determine the relationship between handgrip strength, smoking, and alcohol consumption in young men and fracture risk at middle age. Thus, we carried out a cohort study including young men undergoing conscription examination in Sweden from September 1969 to May 1970 at a typical age of 18 years. Data on muscle strength, height, weight, and lifestyle factors were linked to the National Patient Register 1987–2010. Handgrip strength was considered the main exposure and smoking and alcohol consumption as secondary exposures. Outcomes were all fractures (except face, skull, digits), major osteoporotic fractures (thoracic/lumbar spine, proximal humerus, distal forearm or hip), and major traumatic fractures (shaft of humerus,... (More)

We aimed to determine the relationship between handgrip strength, smoking, and alcohol consumption in young men and fracture risk at middle age. Thus, we carried out a cohort study including young men undergoing conscription examination in Sweden from September 1969 to May 1970 at a typical age of 18 years. Data on muscle strength, height, weight, and lifestyle factors were linked to the National Patient Register 1987–2010. Handgrip strength was considered the main exposure and smoking and alcohol consumption as secondary exposures. Outcomes were all fractures (except face, skull, digits), major osteoporotic fractures (thoracic/lumbar spine, proximal humerus, distal forearm or hip), and major traumatic fractures (shaft of humerus, forearm, femur, or lower leg) based on ICD-9 and -10 codes. We used Cox regression models to estimate hazard ratios (HR) and 95% confidence intervals (CI) according to handgrip strength as a continuous variable (per 1 SD), after adjustment for weight, height, parental education, smoking, and alcohol consumption. A total of 40,112 men were included, contributing 892,572 person-years. Overall, 3974 men fractured in middle age with the incidence rate (95% CI) of 44.5 (43.2–45.9) per 1000 person-years. The corresponding rates were12.2 and 5.6 per 1000 person-years for major osteoporotic and traumatic fractures, respectively. Handgrip strength-adjusted HR (95% CI) was 1.01 (0.98–1.05), 0.94 (0.88–1.00), and 0.98 (0.88–1.08) per SD for all, major osteoporotic, and major traumatic fractures, respectively. Adjusted HR (95% CI) for smokers (>21 cigarettes/d) was 1.44 (1.21, 1.71) for all fractures, while the association between alcohol consumption and hazards of fracture was J-shaped. Therefore, young adult handgrip strength was not associated with fracture risk in middle-age men, although smoking and high alcohol consumption did confer an increased risk.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Epidemiology, Fracture, General population, Prevention, Skeletal Muscle
in
Journal of Bone and Mineral Research
volume
35
issue
3
pages
7 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:85076101479
  • pmid:31714618
ISSN
0884-0431
DOI
10.1002/jbmr.3917
language
English
LU publication?
yes
id
c6038f9d-2092-482d-b67f-e9256d8c4c12
date added to LUP
2020-01-02 16:46:27
date last changed
2024-05-01 02:21:28
@article{c6038f9d-2092-482d-b67f-e9256d8c4c12,
  abstract     = {{<p>We aimed to determine the relationship between handgrip strength, smoking, and alcohol consumption in young men and fracture risk at middle age. Thus, we carried out a cohort study including young men undergoing conscription examination in Sweden from September 1969 to May 1970 at a typical age of 18 years. Data on muscle strength, height, weight, and lifestyle factors were linked to the National Patient Register 1987–2010. Handgrip strength was considered the main exposure and smoking and alcohol consumption as secondary exposures. Outcomes were all fractures (except face, skull, digits), major osteoporotic fractures (thoracic/lumbar spine, proximal humerus, distal forearm or hip), and major traumatic fractures (shaft of humerus, forearm, femur, or lower leg) based on ICD-9 and -10 codes. We used Cox regression models to estimate hazard ratios (HR) and 95% confidence intervals (CI) according to handgrip strength as a continuous variable (per 1 SD), after adjustment for weight, height, parental education, smoking, and alcohol consumption. A total of 40,112 men were included, contributing 892,572 person-years. Overall, 3974 men fractured in middle age with the incidence rate (95% CI) of 44.5 (43.2–45.9) per 1000 person-years. The corresponding rates were12.2 and 5.6 per 1000 person-years for major osteoporotic and traumatic fractures, respectively. Handgrip strength-adjusted HR (95% CI) was 1.01 (0.98–1.05), 0.94 (0.88–1.00), and 0.98 (0.88–1.08) per SD for all, major osteoporotic, and major traumatic fractures, respectively. Adjusted HR (95% CI) for smokers (&gt;21 cigarettes/d) was 1.44 (1.21, 1.71) for all fractures, while the association between alcohol consumption and hazards of fracture was J-shaped. Therefore, young adult handgrip strength was not associated with fracture risk in middle-age men, although smoking and high alcohol consumption did confer an increased risk.</p>}},
  author       = {{Prieto-Alhambra, Daniel and Turkiewicz, Aleksandra and Reyes, Carlen and Timpka, Simon and Rosengren, Björn and Englund, Martin}},
  issn         = {{0884-0431}},
  keywords     = {{Epidemiology; Fracture; General population; Prevention; Skeletal Muscle}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{498--504}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Journal of Bone and Mineral Research}},
  title        = {{Smoking and Alcohol Intake but Not Muscle Strength in Young Men Increase Fracture Risk at Middle Age : A Cohort Study Linked to the Swedish National Patient Registry}},
  url          = {{http://dx.doi.org/10.1002/jbmr.3917}},
  doi          = {{10.1002/jbmr.3917}},
  volume       = {{35}},
  year         = {{2020}},
}