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. Author manuscript; available in PMC: 2015 Jul 25.
Published in final edited form as: J Nutr Health Aging. 2012 Jul;16(7):601–608. doi: 10.1007/s12603-012-0084-2

Table 3.

Cross-sectional and longitudinal associations for baseline prefrail and frail status with outcome measures among AAH participants

Cross-sectional Outcomes Activities of Daily Living Status at Baseline
No ADL Difficulty (n=703)*
Ordinary Least Squares Regression
No ADL Dependence (n=883)*
Ordinary Least Squares Regression
Unstandardized Coefficients B (SE) P-Value Unstandardized Coefficients B (SE) P-Value
IADLs
 Pre-Frail 0.42 (0.05) <.001 0.77 (0.07) <.001
 Frail 1.38 (0.16) <.001 2.08 (0.13) <.001
SPPB
 Pre-Frail −0.93 (0.21) <.001 −1.54 (0.20) <.001
 Frail −2.37 (0.64) <.001 −3.89 (0.40) <.001
Gait Speed
 Pre-Frail −0.04 (0.03) .11 −0.07 (0.02) .003
 Frail −0.09 (0.07) .21 −0.14 (0.05) .002
1-Leg Stand
 Pre-Frail −3.23 (0.89) <.001 −3.97 (0.82) <.001
 Frail −8.82 (2.73) .001 −8.47 (1.79) <.001
Grip Strength
 Pre-Frail −3.11 (0.82) <.001 −3.58 (0.74) <.001
 Frail −6.28 (2.39) .009 −4.13 (1.46) .005

Binary Logistic Regression Binary Logistic Regression
Odds Ratio (95% CI ) P-Value Odds Ratio (95% CI ) P-Value

Injurious Falls
 Pre-Frail 0.72 (0.30–1.73) .834 1.14 (0.56–2.30) .720
 Frail 1.25 (0.15–10.19) .732 2.35 (0.88–6.30) .089
Longitudinal Outcomes (9-Years) Activities of Daily Living Status at Baseline
No ADL Difficulty (N=423) No ADL Dependence (N=528)
Ordinary Least Squares Regression Model 1a* Ordinary Least Squares Regression Model 2a** Ordinary Least Squares Regression Model 1b* Ordinary Least Squares Regression Model 2b**
Unstandardized Coefficients B (SE) P-Value Unstandardized Coefficients B (SE) P-Value Unstandardized Coefficients B (SE) P-Value Unstandardized Coefficients B (SE) P-Value
ADLs
 Pre-Frail 0.27 (0.13) .041 ----- ----- 0.53 (0.14) <.001 0.36 (0.14) .012
 Frail 1.96 (0.50) <.001 2.28 (0.30) <.001 1.82 (0.32) <.001
IADLs
 Pre-Frail 0.48 (0.16) .003 0.23 (0.16) .151 0.74 (0.16) <.001 0.35 (0.16) .029
 Frail 1.46 (0.60) .015 0.40 (0.60) .508 1.84 (0.36) <.001 0.99 (0.36) .006
SPPB
 Pre-Frail −0.72 (0.29) .013 −0.47 (0.27) .088 −1.09 (0.27) <.001 −0.45 (0.26) .089
 Frail −2.72 (1.04) .009 −1.40 (0.97) .151 −4.60 (0.60) <.001 −2.66 (0.60) <.001
Gait Speed
 Pre-Frail −0.02 (0.03) .449 0.04 (0.04) .385 −0.05 (0.03) .094 0.03 (0.04) .506
 Frail −0.09 (0.12) .439 −0.07 (0.13) .606 −0.20 (0.07) .004 −0.11 (0.11) .297
1-Leg Stand
 Pre-Frail −4.17 (1.30) .001 −3.20 (1.20) .008 −4.09 (1.15) <.001 −3.27 (1.11) .004
 Frail −0.75 (4.93) .879 2.74 (4.42) .536 −1.64 (3.36) .626 0.58 (3.24) .857
Grip Strength
 Pre-Frail −2.21 (0.98) .025 −0.65 (0.95) .499 −1.63 (0.87) .063 −0.21 (0.86) .810
 Frail −6.25 (3.62) .085 −3.67 (3.38) .278 −3.61 (2.05) .079 −1.55 (2.08) .458

Binary Logistic Regression Binary Logistic Regression Binary Logistic Regression Binary Logistic Regression
Odds Ratio (95% CI) P-Value Odds Ratio (95% CI) P-Value Odds Ratio (95% CI) Odds Ratio (95% CI) P-Value

Injurious Falls
 Pre-Frail 0.60 (0.21–1.77) .357 0.59 (0.20–1.75) .344 1.10 (0.48–2.52) .827 1.06 (0.46–2.45) .894
 Frail 3.31 (0.36–30.8) .293 3.62 (0.39–34) .260 0.72 (0.09–5.80) .437 0.72 (0.09–5.84) .758
Mortality
 Pre-Frail 1.69 (1.07–2.67) .025 ----- ----- 1.61 (1.06–2.44) .027 ----- -----
 Frail 3.64 (1.12–11.8) .032 4.19 (2.10–8.35) <.001
*

Models adjusted for age and sex;

**

Models adjusted for age, sex, and baseline value of the outcome variable being examined.