Table 1 Participants’ characteristics in the derivation and validation datasets
From: CT analysis of thoracolumbar body composition for estimating whole-body composition
Derivation dataset | External validation dataset | |||||||
|---|---|---|---|---|---|---|---|---|
Male (n = 101) | Female (n = 102) | All (n = 203) | Male (n = 80) | Female (n = 159) | All (n = 239) | BRM (n = 199) | KUDH (n = 40) | |
Age | 59.3 ± 14.8 | 57.1 ± 16.3 | 58.2 ± 15.5 | 59.9 ± 13.8 | 56.7 ± 12.5 | 57.8 ± 13.0 | 56.5 ± 12.5 | 64.2 ± 13.8 |
Height (cm)a | 169.6 ± 6.9 | 157.4 ± 6.5 | 163.5 ± 9.1 | 166.4 ± 7.2 | 156.8 ± 6.7 | 160.0 ± 8.2 | 159.9 ± 8.3 | 160.3 ± 8.1 |
Weight (kg)a | 69.9 ± 10.8 | 58.3 ± 9.2 | 64.1 ± 11.6 | 65.4 ± 11.4 | 57.7 ± 8.8 | 60.4 ± 10.4 | 59.9 ± 10.1 | 61.9 ± 11.47 |
Body mass indexa | 24.3 ± 3.3 | 23.5 ± 3.5 | 23.9 ± 3.4 | 23.5 ± 3.2 | 23.5 ± 3.3 | 23.5 ± 3.3 | 23.4 ± 3.3 | 24.0 ± 3.2 |
< 18.5 | 2 (2.0%) | 9 (8.8%) | 11 (5.4%) | 5 (6.3%) | 9 (5.7%) | 14 (5.9%) | 13 (6.5%) | 1 (2.5%) |
18.5–22.9 | 38 (37.6%) | 37 (36.3%) | 75 (36.9%) | 29 (36.3%) | 65 (40.9%) | 94 (39.3%) | 79 (39.7%) | 15 (37.5%) |
23–24.9 | 25 (24.8%) | 23 (22.5%) | 48 (23.6%) | 20 (25.0%) | 31 (19.5%) | 51 (21.3%) | 44 (22.1%) | 7 (17.5%) |
25–29.9 | 30 (29.7%) | 30 (29.4%) | 60 (29.6%) | 25 (31.3%) | 52 (32.7%) | 77 (32.2%) | 61 (30.7%) | 16 (40.0%) |
≥ 30 | 6 (5.9%) | 3 (2.9%) | 9 (4.4%) | 1 (1.3%) | 2 (1.3%) | 3 (1.3%) | 2 (1.0%) | 1 (2.5%) |
Body composition (liter)a | ||||||||
Whole-body muscle | 23.9 ± 4.5 | 16.4 ± 2.6 | 20.1 ± 5.2 | 19.7 ± 4.0 | 14.7 ± 2.6 | 16.4 ± 3.9 | 16.3 ± 3.5 | 17.1 ± 5.4 |
Whole-body visceral Fat | 3.6 ± 1.9 | 2.3 ± 1.4 | 3.0 ± 1.8 | 3.0 ± 1.7 | 2.1 ± 1.2 | 2.4 ± 1.4 | 2.3 ± 1.4 | 3.0 ± 1.4 |
Whole-body subcutaneous fat | 13.7 ± 5.2 | 18.4 ± 5.4 | 16.1 ± 5.8 | 9.7 ± 4.8 | 14.3 ± 4.5 | 12.8 ± 5.1 | 12.6 ± 5.1 | 13.3 ± 5.1 |