Table 3. Basic characteristics for female college students grouping by BMI.
| BMI | <18.5 | >=18.5, <23.9 | >=23.9, <27.9 | >=27.9 | P-value |
|---|---|---|---|---|---|
| N | 109 | 221 | 9 | 3 | |
| Age (year) | 20.12±1.41 | 19.91±1.35 | 19.56±1.42 | 20.33±0.58 | 0.442 |
| Lean body weight (kg) | 34.71±2.25 | 37.01±2.66 | 40.28±3.64 | 40.17±1.02 | <0.001 |
| Fat content (kg) | 7.94±1.90 | 12.24±2.43 | 21.78±2.31 | 29.90±3.65 | <0.001 |
| Muscle content (kg) | 32.83±2.06 | 34.93±2.43 | 37.91±3.33 | 37.80±0.96 | <0.001 |
| Presumptive bone mass (kg) | 1.88±0.20 | 2.08±0.24 | 2.37±0.31 | 2.33±0.06 | <0.001 |
| Body moisture (kg) | 23.85±1.55 | 25.97±1.96 | 29.21±2.50 | 32.13±0.81 | <0.001 |
| Protein (kg) | 9.02±0.70 | 9.00±0.86 | 8.72±1.10 | 5.73±0.12 | <0.001 |
| Intracellular fluid (kg) | 14.94±1.09 | 16.07±1.40 | 17.41±1.69 | 19.23±0.99 | <0.001 |
| Extracellular fluid (kg) | 8.94±0.54 | 9.93±0.66 | 11.81±0.92 | 12.93±0.29 | <0.001 |
| Body fat percentage (%) | 18.42±3.52 | 24.69±3.56 | 35.11±2.29 | 42.60±3.44 | <0.001 |
| Muscle volume ratio (%) | 91.04±4.77 | 96.37±5.30 | 102.41±8.73 | 116.10±2.04 | <0.001 |
| Visceral fat area (cm2) | 10.09±0.96 | 12.81±5.93 | 43.78±10.31 | 64.17±13.16 | <0.001 |
| Visceral fat content (kg) | 0.45±0.18 | 0.85±0.30 | 2.37±0.54 | 3.67±0.91 | <0.001 |
| Subcutaneous fat content (kg) | 7.48±1.74 | 11.41±2.14 | 19.42±1.77 | 26.20±2.74 | <0.001 |
| Waist to hip ratio (%) | 0.75±0.02 | 0.79±0.02 | 0.84±0.02 | 0.87±0.02 | <0.001 |
| Basal metabolism (kcal/.d) | 1066.97±62.99 | 1152.64±77.18 | 1292.78±101.56 | 1324.33±24.83 | <0.001 |
| Total energy metabolism (kcal/.d) | 1584.46 ± 93.52 | 1711.71±114.62 | 1919.67±150.89 | 1966.33±36.95 | <0.001 |
| Edema index (%) | 0.35±0.01 | 0.36±0.01 | 0.37±0.01 | 0.37±0.01 | <0.001 |
| Trunk muscle mass (kg) | 16.68±1.39 | 17.77±1.66 | 19.06±2.18 | 17.27±0.38 | <0.001 |
| Left upper limb muscle mass (kg) | 1.46±0.60 | 1.61±0.71 | 1.76±0.17 | 2.00±0.00 | 0.127 |
| Left lower limb muscle mass (kg) | 6.65±0.48 | 6.99±0.53 | 7.63±0.56 | 8.23±0.51 | <0.001 |
| Right upper limb muscle mass (kg) | 1.42±0.13 | 1.59±0.15 | 1.81±0.23 | 2.07±0.06 | <0.001 |
| Right lower extremity muscle mass (kg) | 6.72±0.40 | 7.09±0.47 | 7.74±0.50 | 8.30±0.40 | <0.001 |
| Trunk fat mass (kg) | 3.10±1.18 | 5.54±1.53 | 11.41±1.73 | 15.10±2.26 | <0.001 |
| Trunk fat rate (%) | 14.62±4.80 | 22.52±4.69 | 36.02±3.19 | 45.13±4.27 | <0.001 |
| Left upper limb fat mass (kg) | 0.31±0.18 | 0.50±0.24 | 0.94±0.12 | 1.60±0.17 | <0.001 |
| Left upper extremity fat percentage (%) | 15.22±4.08 | 21.78±4.13 | 33.28±2.35 | 42.17±3.59 | <0.001 |
| Left lower limb fat mass (kg) | 2.17±0.32 | 2.90±0.37 | 4.29±0.28 | 5.83±0.55 | <0.001 |
| Left lower extremity fat rate (%) | 23.34±2.86 | 27.98±2.68 | 34.56±1.31 | 39.97±2.35 | <0.001 |
| Right upper limb fat mass (kg) | 0.27±0.08 | 0.46±0.11 | 0.90±0.10 | 1.57±0.15 | <0.001 |
| Right upper limb fat rate (%) | 13.56±3.64 | 20.35±3.77 | 31.73±2.59 | 41.20±3.32 | <0.001 |
| Right lower extremity fat mass (kg) | 2.21±0.32 | 2.94±0.37 | 4.34±0.28 | 5.90 ± 0.52 | <0.001 |
| Right lower extremity fat rate (%) | 23.44±2.65 | 27.93±2.52 | 34.44±1.20 | 39.87±2.50 | <0.001 |
Data are presented as mean±SD.