This document can be used to prepare or evaluate feasibility of ancillary study proposals and paper proposals, but is NOT intended for publication.

Form 90 - Functional Status

File NameData as ofPopulationData collectedOne row perRows
f90_ct_inv.dat9/12/2005CT SubsetBaseline, MainForm21,697
ID - WHI Participant Common ID
Col 1
NMissing
21,6970
F90DAYS - F90 Days since randomization
Col 2
NMissingMinMaxMeanStdDev
21,6970-2593,445893.646877.313
F90VTYP - Visit Type
Col 3
ValueDescriptionN%
1Screening5,98527.6
2Semi-Annual visit1100.5
3Annual visit15,59771.9
4Non-Routine visit50
F90VY - Visit year
Col 4

Visit year for which this form was collected.

NMissingMinMaxMeanStdDev
21,69250102.4442.393
F90VCLO - Closest to visit within visit type and year
Col 5

For forms entered with the same visit type and year, indicates the one closest to that visit's target date. Valid for forms entered with an annual visit type.

Usage Notes:

See data preparation document.

ValueDescriptionN%
0No190.1
1Yes21,67899.9
F90EXPC - Expected for visit
Col 6

This form/data was expected for this visit. Form 90 (Functional Status) was expected at Baseline and at years 1, 3, 6, and 9 for a subsample of CT.

Usage Notes:

This includes forms from the subsample of OS participants at year 6 that were enrolled in the three clinical centers participating in the WHI Osteoporosis sub study, as height and weight were collected on OS participants at year 6 by design; see table 16.1; on page 16-18b of volume 2.

ValueDescriptionN%
0No4101.9
1Yes21,28798.1
GRIPSIDE - Grip strength: side tested
Col 7
ValueDescriptionN%
1Right19,86991.6
2Left1,5087
3Attempted, unable to complete70
8Refused420.2
9Not attempted for safety or health1140.5
Missing1570.7%
GRIPDOM - Grip strength: dominance of hand
Col 8

Grip strength: Dominance of hand used

ValueDescriptionN%
1Dominant20,83596
2Non-dominant4262
Missing4362%
GRIPSTR1 - Grip strength measurement 1 (kg)
Col 9

Grip strength: Measurement #1 (kg)

NMissingMinMaxMeanStdDev
21,40529208021.8646.358
GRIPSTR2 - Grip strength measurement 2 (kg)
Col 10

Grip strength: Measurement #2 (kg)

NMissingMinMaxMeanStdDev
21,38631108022.2066.418
CHRSTAND - Result of single chair stand
Col 11
ValueDescriptionN%
1Test completed, arises without using arm19,83591.4
2Test completed, arises using arms7563.5
3Attempted, unable to rise from chair1730.8
8Refused820.4
9Not attempted for safety or health7593.5
Missing920.4%
CHRSTND1 - Number of stands from first chair stand
Col 12

Single chair stand: Repeated chair stands in 15 seconds (first)

Usage Notes:

Sub-question of F90 V1 Q6 "Single chair stand" (skip pattern rule not applied).

NMissingMinMaxMeanStdDev
20,1741,5230206.271.874
CHRSTND2 - Number of stands from 2nd chair stand
Col 13

Single chair stand: Repeated chair stands in 15 seconds (second)

Usage Notes:

Sub-question of F90 V1 Q6 "Single chair stand" (skip pattern rule not applied).

NMissingMinMaxMeanStdDev
20,0711,6260196.6581.997
TIMEDWLK - Result of timed walk
Col 14
ValueDescriptionN%
1Test completed or partially completed20,86696.2
2Attempted, unable to complete one trial80
8Refused350.2
9Not attempted for safety or health2551.2
Missing5332.5%
TIMEWLK1 - Time of first timed walk (secs)
Col 15

Timed walk: Time in seconds (first)

Usage Notes:

Sub-question of F90 V1 Q7 "Timed walk" (skip pattern rule not applied). Consider setting values less than 2 seconds to missing.

NMissingMinMaxMeanStdDev
21,3253720606.584.98
TIMEWLK2 - Time of second timed walk (secs)
Col 16

Timed walk: Time in seconds (second)

Usage Notes:

Sub-question of F90 V1 Q7 "Timed walk" (skip pattern rule not applied). Consider setting values less than 2 seconds to missing.

NMissingMinMaxMeanStdDev
21,3103870606.3084.896
ASSTDWLK - Used assistive device for timed walk
Col 17

Timed walk: Assistive device used?

Usage Notes:

Sub-question of F90 V1 Q7 "Timed walk" (skip pattern rule not applied).

ValueDescriptionN%
0No20,06392.5
1Yes4382
Missing1,1965.5%