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. 2010 Feb 1;25(2):289–298. doi: 10.1007/s00467-009-1335-2

Table 4.

Differences between left and right kidney structures stratified for gender. Differences between left and right kidney structures were compared using paired-samples t-tests. Values are means (95% range)

Kidney measurement Boys Girls
Left kidney Right kidney P Left kidney Right kidney P
Gestational age 30 weeks (n = 604) (n = 603) (n = 553) (n = 556)
 Length (mm) 39.5 (32.0–47.0) 39.6 (32.0–46.6) 0.79 38.4 (32.7–45.0) 38.5 (32.2–45.3) 0.45
 Width (mm) 21.6 (17.0–28.0) 22.4 (17.0–28.0) <0.001 21.1 (16.5–26.0) 22.0 (17.0–27.6) <0.001
 Depth (mm) 22.7 (17.0–29.0) 23.2 (17.8–30.0) <0.001 22.1 (17.9–27.8) 22.9 (18.0–29.0) <0.001
 Volume (cm3) 10.3 (5.4–17.9) 11.0 (5.8–18.5) <0.001 9.5 (5.4–15.0) 10.3 (5.8–16.8) <0.001
Age 6 months (n = 375) (n = 379) (n = 358) (n = 368)
 Length (mm) 60.1 (48.6–70.4) 58.8 (49.7–69.3) <0.001 58.6 (50.0–67.4) 57.5 (49.5–67.6) <0.001
 Width (mm) 28.2 (22.3–36.4) 28.0 (21.8–35.4) 0.50 27.6 (21.6–35.7) 27.5 (21.4–36.5) 0.72
 Depth (mm) 26.5 (20.1–33.0) 27.8 (21.3–34.9) <0.001 25.5 (20.2–32.2) 27.0 (20.9–34.0) <0.001
 Volume (cm3) 23.8 (14.0–36.6) 24.0 (15.3–35.6) 0.35 21.9 (13.9–33.4) 22.4 (14.2–34.6) 0.06
Age 24 months (n = 330) (n = 347) (n = 318) (n = 336)
 Length (mm) 66.8 (56.1–80.3) 65.2 (54.8–76.6) <0.001 65.7 (53.7–78.0) 64.3 (53.2–76.5) <0.001
 Width (mm) 30.8 (25.6–37.1) 30.7 (25.6–38.0) 0.68 30.1 (23.5–37.8) 30.6 (25.2–37.1) 0.02
 Depth (mm) 30.9 (24.8–38.9) 32.0 (25.5–39.4) <0.001 30.1 (24.2–38.1) 31.9 (25.9–39.6) <0.001
 Volume (cm3) 33.6 (22.8–51.6) 33.8 (22.9–53.3) 0.30 31.8 (19.3–52.2) 33.1 (22.1–49.2) <0.001