Seasonality of hip fracture and vitamin D deficiency persists in a sub‐tropical climate
Internal Medicine Journal https://doi.org/10.1111/imj.14391
Sonia E. Lara Alvarez Kate Bell Nicola Ward Cameron Cooke Warrick J. Inder
Falls and Fractures category contains the following
258 items in FALLS and FRACTURES - Vitamin D and Calcium cost-effectively reduce falls and fractures – April 2019
- see also Overview Seniors and Vitamin D
Falls
- Fall prevention - Vitamin D is one of the ways - umbrella review Jan 2024
- Deaths due to falls doubled in just a decade (age-adjusted, perhaps decreased vitamin D) – June 2019
- Preventing Falls in Older Adults – Vitamin D combination is the best - JAMA Meta-analysis Nov 2017
- Falls cut in half by 100,000 IU vitamin D monthly - RCT 2016
- Falls reduced by a third if achieved 40 ng level vitamin D– RCT Sept 2018
- Note: It took 6 months to get to that level. Most trials last only 3 months
- Vitamin D prevents falls – majority of meta-analyses conclude – meta-meta analysis Feb 2015
- Falls reduced by Vitamin D: 13 percent reduction if more than 700 IU – review of 38 trials – Aug 2022
Left hand column section as of Nov 2024
Ankle (16+)Bone Mineral Density (28+)Children (16+)Hip Fractures (68+)Vertigo (22+)Fracture
- Hip fractures are predicted by 10 factors – low Vitamin D is the biggest – Aug 2023
- Vitamin D and fractures – 24 meta-analyses and counting – Dec 2014
- Low trauma bone fractures in seniors – considering Vitamin D loading dose for all, without testing – Nov 2019
- Vitamin K (any amount and any kind) reduced bone fractures by 24 percent – meta-analysis – May 2019
- 77+ Hip fracture items in VitaminDWiki title Click here for details examples:
Download the PDF from VitaminDWiki
Both hip fractures and vitamin D (25‐hydroxyvitamin D (25‐OHD)) deficiency are more common in winter in regions with temperate climates, but few data exist for a sub‐tropical climate. In a South East Queensland tertiary hospital over a 7‐year period, there were significantly more hip fractures in winter than the other three seasons (analysis of variance P = 0.003), with associated higher frequency of 25‐OHD deficiency – 42.5% in winter compared to 28.5% in summer, odds ratio 1.86 (95% confidence interval 1.35–2.56), P = 0.0001. Seasonality of hip fracture and 25‐OHD deficiency occurs even in a sub‐tropical climate.
Osteoporosis and falls are risk factors for fragility fractures, particularly hip fractures in the older population. In Australia, there were over 24 000 hip fractures recorded in 2014; an ageing population and rise in chronic disease may lead to over 30 000 hip fractures per year from 2020 onwards.1 Hip fracture is associated with an increased 1‐year mortality rate of over 25%, with factors such as male sex, age, presence of heart failure and measures of functional independence being important determinants.2
Previous Australian data demonstrated a seasonal pattern for hip fractures in New South Wales3 and Victoria.4 In Geelong, Victoria, a fall in vitamin D (25‐hydroxyvitamin D (25‐OHD)) concentrations in winter was associated with increased levels of parathyroid hormone (PTH), bone resorption, falls and increased incidence of fractures both of the hip and wrist.4 Australia extends from 12 to 43°S and 115 to 151°E situated in a tropical to mild latitude world region,5 with Southeast Queensland located from 27.5°S in a sub‐tropical world region.6
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