Table 1.
Demographic information and numbers of 2D kidney images in different views.
| Cases (N = 86) | Controls (N = 71) | p-value | ||
|---|---|---|---|---|
| Characteristics | ||||
| Sex n (%) | N/A | |||
| Male | 86 (100) | 71 (100) | ||
| Age at first US (months) Mean (Std) | 0.91 (1.89) | 1.48 (2.32) | 0.09 | |
| Gestational age (weeks)* Mean (Std) | 37.1 (2.8) | 38.5 (2.3) | 0.004 | |
| Race n (%) | ||||
| White | 28 (32.6) | 40 (56.3) | 0.0006 | |
| Black | 34 (39.5) | 8 (11.3) | ||
| Asian | 3 (3.5) | 4 (5.6) | ||
| Other | 21 (24.4) | 19 (26.8) | ||
| CAKUT n (%) | PUV | 86 (100) | N/A | N/A |
| number of 2D images in sagittal view/individual | 22.7±9.4 | 21.9±7.6 | 0.546 | |
| number of 2D images in transverse view/individual | 15.8±6.1 | 16.9±6.5 | 0.285 | |
*
N used to calculate gestational age statistics is lower due to lack of existing data; N = 75 for cases and N = 42 for controls. Difference in numbers of 2D kidney images of individuals was assessed using two-sample t-test.