2017-10-30 - Kick-off

[andkov]

Present: @GracielaMuniz, @annierobi, @emielhoogendijk , @jochinho , Judith

idea in big strokes

We inherit the methodology from iasla-2016-amsterdam and iasla-2017-amsterdam and focus on measures of physical performance: hand grip and speed gait

Studies

• LASA - (NL)
• RUSH-MAP - (USA)
• OCTO-Twin (SW)
• H70 (SW)

maybe:

• Lothian
• Newcastle85+ However, we are not certain that adding more studies will make the paper(s) better.

Notes

• "The trick is how to describe the results" (G.Muniz)
• The gait measure needs clarification: Rapid vs Normal
• Currently, early January is what we are thinking about the in-person meeting. There will be an IALSA meeting in January in Chicago, so it might be easier to fly the European partners over.

What writer needs

Looking back at 2016 and 2017, what does the writer need to organize the manuscript? We started making bullets:

• study Description
• attrition
• sample size (over waves)
• Respondents vs Observations : make sure this is clearly spelled out
• number of deaths
• Measurement: be very specific how each measurement is coded
• Describe the temporal structure of the study: measurement waves
• How each parameter of the mode is constrained
• Whether misclassification was applied and how

Action items

• next meeting is scheduled for Monday, Nov 20, 4 pm. Amsterdam time (2017-11-20-16:00 GMT+1)
  Before meeting next time, we have agreed to

  @emielhoogendijk

• [x] send out a list of variables that will be used in the project
• [x] send out a cutoff scores for gait and grip that would operationally define physical impairment

@andkov

• [ ] work with the What writer needs list and prepare a draft report using MAP data from ialsa-2017-amsterdam with intent to automate some of the output

@GracielaMuniz

• [ ] clarify the date for which the IALSA group meeting will be held in Chicago in Jan of 2018

[andkov]

@emielhoogendijk @GracielaMuniz

I am a bit confused as to why we need to categorize the measures of gait

that would operationally define physical impairment

It would make sense to use cut-off scores like we did with mmse to define the states. However, we are not using gait as the outcome (to define the states, transitions among which we study), but as the predictor.

We did indeed applied this to education, but only (if I recall correctly) to accommodate the scales of this measure in specific studies. I hope we could touch on this during discussion.