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. 2021 May 26;11:11076. doi: 10.1038/s41598-021-90641-5

Table 4.

The consistency of the VFA between BIA and QCT using the Kappa method according to the gender and age groups.

Total (2754) QCT-BIA (cm2) Kappa
VFA-BIA (cm2) Q1 (≤ 110.5) Q2 (110.5 ~ 168.1) Q3 (168.1 ~ 227.9) Q4 (≥ 227.9)
Q1 (≤ 75.7) 361 167 122 39 0.295
Q2 (75.7 ~ 95.6) 178 167 177 166
Q3 (95.6 ~ 120.23) 124 220 171 174
Q4 (≥ 120.23) 27 138 214 309
Male (1491) Q1 (≤ 169.9) Q2 (169.9 ~ 213.6) Q3 (213.6 ~ 264.0) Q4 (≥ 264.0)
Q1 (≤ 74.4) 254 88 27 7 0.540
Q2 (74.4 ~ 91.3) 88 149 99 35
Q3 (91.3 ~ 112.2) 23 109 132 93
Q4 (≥ 112.2) 8 27 115 237
Male (774), Age < 50 Q1 (≤ 163.8) Q2 (163.8 ~ 208.1) Q3 (208.1 ~ 259.8) Q4 (≥ 259.8)
Q1 (≤ 73.9) 125 48 16 5 0.522
Q2 (73.9 ~ 90.6) 51 74 49 20
Q3 (90.6 ~ 112.3) 13 58 75 48
Q4 (≥ 112.3) 4 15 53 120
Male (717), Age ≥ 50 Q1 (≤ 175.1) Q2 (175.1 ~ 219.4) Q3 (219.4 ~ 271.6) Q4 (≥ 271.6)
Q1 (≤ 75.1) 128 41 7 3 0.565
Q2 (75.1 ~ 92.3) 36 74 53 17
Q3 (92.3 ~ 112.0) 12 57 66 44
Q4 (≥ 112.0) 3 8 53 115
Female (1263) Q1 (≤ 85.3) Q2 (85.3 ~ 117.2) Q3 (117.2 ~ 156.7) Q4 (≥ 156.7)
Q1 (≤ 78.1) 203 81 21 11 0.524
Q2 (78.1 ~ 101.5) 95 107 93 21
Q3 (101.5 ~ 126.9) 17 98 117 85
Q4 (≥ 126.9) 2 29 85 198
Female (609), Age < 50 Q1 (≤ 71.8) Q2 (71.84 ~ 96.4) Q3 (96.4 ~ 125.4) Q4 (≥ 125.4)
Q1 (≤ 70.9) 92 40 18 4 0.472
Q2 (70.9 ~ 89.5) 37 54 50 10
Q3 (89.5 ~ 114.1) 20 42 46 44
Q4 (≥ 114.1) 3 17 38 94
Female (654), Age ≥ 50 Q1 (≤ 106.9) Q2 (106.9 ~ 141.3) Q3 (141.3 ~ 175.5) Q4 (≥ 175.5)
Q1 (≤ 90.1) 103 37 18 7 0.486
Q2 (90.1 ~ 113.6) 44 62 49 9
Q3 (113.6 ~ 138.2) 13 48 50 51
Q4 (≥ 138.2) 3 17 47 96