Research article
A Frailty Instrument for primary care: findings from the Survey of Health, Ageing and Retirement in Europe (SHARE)
BMC Geriatrics 2010, 10:57 doi:10.1186/1471-2318-10-57
- Correction: predicted DFS formula for males
- Grip strength measurement protocol
- Translated SHARE-FI calculators
Grip strength measurement protocol
Roman Romero-Ortuno
(2011-07-06 17:39) Department of Medical Gerontology, Trinity College Dublin 
Note from the authors:
In SHARE, handgrip strength (Kg) was assessed using a Smedley dynamometer (S Dynamometer,
TTM, Tokyo, 100 Kg), according to the following measurement protocol:
"Participants were instructed to stand (preferably) or sit, with the elbow at 90°,
the wrist in neutral position, keeping the upper arm tight against the trunk, and
the inner lever of the dynamometer adjusted to suit the hand; and they were then instructed
to squeeze as hard as possible for a few seconds"
For more information, please see: Mohd Hairi F, Mackenbach JP, Andersen-Ranberg K,
Avendano M. Does socio-economic status predict grip strength in older Europeans? Results
from the SHARE study in non-institutionalised men and women aged 50+. J Epidemiol
Community Health. 2010;64:829-37.
Competing interests
None
Translated SHARE-FI calculators
Roman Romero-Ortuno
(2011-05-23 15:59) Department of Medical Gerontology, Trinity College Dublin
Note from the authors:
Please note that translated versions of the SHARE-FI calculators can be found on:
https://sites.google.com/a/tcd.ie/share-frailty-instrument-calculators/home
Roman Romero-Ortuno
Competing interests
None.
Correction: predicted DFS formula for males
Roman Romero-Ortuno (2012-03-07 15:01) Trinity College Dublin
Please note:
On the final online version of the article (http://www.biomedcentral.com/1471-2318/10/57), there is a typographical error on the predicted DFS formula for males.
The male formula needs to have the negative value "-0.4653" as the Grip strength multiplier, as shown below:
DFS (males) = (2.280336 * Fatigue - 0.592393) * 0.3762 + (4.058274 * Loss of
appetite - 0.263501) * 0.3130 + (0.092326 * Grip strength - 3.986646) * -0.4653 +
(3.098226 * Functional difficulties - 0.365971) * 0.6146 + (1.005942 * Physical
activity - 1.571803) * 0.4680
The correct formula (as shown above) can also be seen in the final pre-publication version of the article (Resubmission - Version 2: http://www.biomedcentral.com/1471-2318/10/57/prepub).
This correction does not affect the online SHARE-FI calculator (Additional file 2, http://www.biomedcentral.com/1471-2318/10/57/additional), which is based on the correct formula.
Competing interests
None.
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