Table 1 Baseline characteristics by quartiles of protein intake (N = 833)
Characteristics | mean/n | SD/% | Protein intake (%Energy) | ||||
|---|---|---|---|---|---|---|---|
Q1 –14.7 N = 208 | Q2 –16.7 N = 208 | Q3 –19.1 N = 209 | Q4 19.1– N = 208 | P value | |||
Age (years) | 86.5 | 1.36 | 86.6 | 86.5 | 86.5 | 86.3 | 0.042 |
Sex (female) | 422 | 50.6 | 37.9 | 51.4 | 53.1 | 60.0 | 0.002 |
BMI (kg/m2) | 23.1 | 3.16 | 23.3 | 22.9 | 23.2 | 22.9 | 0.49 |
Cancer (n) | 182 | 22.0 | 48 | 46 | 38 | 50 | 0.77 |
CVD (n) | 268 | 32.1 | 70 | 66 | 63 | 69 | 0.87 |
Residual teeth number | 13.8 | 9.85 | 12.6 | 12.9 | 14.6 | 14.9 | 0.005 |
MMSE score | 26.9 | 1.93 | 26.8 | 26.9 | 27.0 | 26.9 | 0.37 |
Barthel Index score | 98.5 | 3.49 | 98.4 | 98.6 | 98.6 | 98.5 | 0.63 |
Lawton Scale score | 4.87 | 0.39 | 4.89 | 4.84 | 4.89 | 4.88 | 0.65 |
Secondary education attainment (n) | 271 | 32.6 | 69 | 69 | 70 | 63 | 0.63 |
Serum Albumin (mg/dl) | 4.16 | 0.28 | 4.16 | 4.11 | 4.17 | 4.19 | 0.056 |
TG (mg/dl) | 130 | 71.2 | 126 | 137 | 130 | 128 | 0.92 |
LDL (mg/dl) | 110 | 27.5 | 110 | 109 | 109 | 114 | 0.09 |
HDL (mg/dl) | 61.2 | 16.0 | 60.5 | 60.8 | 60.9 | 62.6 | 0.22 |
CRP (mg/dl) | 0.21 | 0.57 | 0.19 | 0.24 | 0.19 | 0.22 | 0.17 |
HbA1c (%) | 5.97 | 0.58 | 5.88 | 5.96 | 6.01 | 6.02 | 0.004 |
UN (mg/dl) | 19.9 | 5.73 | 18.7 | 19.8 | 20.6 | 20.6 | 0.11 |
eGFR Cre (ml/min/1.73 m2) | 59.3 | 14.5 | 59.6 | 59.4 | 57.9 | 60.2 | 0.86 |
eGFR Cys (ml/min/1.73 m2) | 57.3 | 13.9 | 56.9 | 56.0 | 56.8 | 59.4 | 0.07 |
Albuminuria (n) | 102 | 12.3 | 28 | 24 | 23 | 27 | 0.89 |
VFA (cm2) | 63.6 | 26.7 | 64.0 | 63.2 | 63.9 | 63.5 | 0.98 |
PBF (%) | 27.8 | 8.04 | 27.5 | 27.7 | 28.0 | 28.2 | 0.28 |
SMI (kg/m2)  Male  Female | 7.33 8.25 6.45 | 1.30 0.05 0.03 | 7.54 8.23 6.46 | 7.29 8.29 6.42 | 7.32 8.12 6.45 | 7.19 8.16 6.49 | 0.018 0.79 0.31 |