Table 3 Ordinal Logistic Regression Model Relating 1-Year Frailty Phenotype (0–5) to Baseline RMR in Subgroups Stratified by Baseline Frailty Status (Non-Frail or Pre-Frail)

Resting Metabolic Rate (per 1 kcal/day)

1.002 (0.53)

1.009 (< 0.001)

Frailty score (baseline)

-- (0 points)

7.83 (< 0.001) (2 vs. 1 point)

Fat-Free Mass (per 1 kg mass)

0.93 (0.34)

0.81 (0.006)

Fat Mass (per 1 kg mass)

1.06 (0.19)

1.008 (0.81)

Race

Black

Other

0.60 (0.53)

Ref

0.34 (0.26)

Ref

Age

1.08 (0.17)

1.04 (0.41)

Gender

Female

Male

0.27 (0.44)

Ref

0.18 (0.17)

Ref

Education¹

≥High School

<High School

--

--

0.05 (0.09)

ref

Monthly Income¹

<$2000

$2000–3999

$4000+/month

Missing

ref

1.07 (0.93)

1.32 (0.74)

6.76 (0.15)

ref

1.21 (0.75)

0.27 (0.12)

0.05 (0.18)