Table 1.
Participant Characteristics
| Variable | Chronic Kidney Disease | Nephrotic Syndrome | Crohn’s Disease | Controls |
|---|---|---|---|---|
| N | 54 | 51 | 64 | 264 |
| Age (years) | 12.7 ± 4.0 | 10.4 ± 4.1 | 12.8 ± 2.7 | 13.0 ± 4.4 |
| Sex, n (%) male | 36 (67) | 30 (59) | 38 (59) | 121 (46) |
| Race, n (%) Black | 14 (26) | 12 (24) | 4 (6) | 83 (31) |
| Tanner Stage, n (%) | ||||
| Stage 1 | 16 (31) | 26 (51) | 17 (26) | 70 (27) |
| Stage 2 | 6 (12) | 7 (14) | 16 (25) | 28 (11) |
| Stage 3 | 11 (21) | 10 (19) | 12 (19) | 34 (13) |
| Stage 4 | 10 (19) | 4 (8) | 16 (25) | 59 (22) |
| Stage 5 | 9 (17) | 4 (8) | 3 (5) | 70 (27) |
| Height | 146.2 ± 20.7 | 138.2 ± 22.0 | 151.5 ± 15.6 | 153.2 ± 18.9 |
| Height Z-score | −0.70 ± 1.31* | −0.19 ± 0.86* | −0.28 ± 1.10* | 0.37 ± 0.91 |
| Weight | 45.2 ± 20.9 | 41.1 ± 21.2 | 42.0 ± 13.6 | 50.3 ± 19.6 |
| Weight Z-score | −0.25 ± 1.40 | 0.55 ± 0.99 | −0.55 ± 1.15 | 0.49 ± 1.02 |
| BMI | 20.0 ± 5.0 | 20.2 ± 4.9 | 17.8 ± 2.8 | 20.6 ± 4.7 |
| BMI Z-score | 0.20 ± 1.12 | 0.81 ± 0.96* | −0.51 ± 1.04* | 0.37 ± 1.01 |
| Muscle CSA (mm2) | 4551 | 3876 | 4202 | 5312 |
| IQR | (3456, 5894) | (3258, 5598) | (3589, 5367) | (3999, 6609) |
| Muscle Torque (ft-lbs) | 13.5 | 9.5 | 14.7 | 17.9 |
| IQR | (7.0, 19.3) | (6.3, 21.9) | (10.1, 18.8) | (11.2, 24.8) |
| Section Modulus (mm3) | 1060 | 800 | 1189 | 1311 |
| IQR | (733, 1399) | (569, 1389) | (818, 1552) | (923, 1700) |
| Serum Albumin (g/dl) | 4.1 | 3.8 | 3.5 | |
| IQR | (3.9 to 4.2) | (3.2 to 4.1) | (3.1 to 3.9) | ----- |
| Range | (3.0 to 4.7) | (1.9 to 4.7) | (1.8 to 4.7) | |
Values are means ± SD or median [interquartile range (IQR) and/or range].
*
Anthropometric Z-scores were significantly different from control group (p < 0.05).