腎の超音波計測に関する研究 第2報: 思春期男女の腎計測

Abstract

思春期の中学・高等学校生徒を中心にした男子231人, 女子220人, 合計451人の超音波断層法による左右腎の計測を行った.1)腎長径と年齢との関係は, 男子ではy (mm)=1.747x+67.663, 相関係数0.489, 危険率<0.01, 女子ではy (mm)=1.550x+76.719, 相関係数0.374, 危険率<0.01であった.2)腎長径と身長との関係は, 男子ではy (mm)=0.305x+43.852, 相関係数0.360, 危険率<0.01, 女子ではy (mm)=0.589x+9.042, 相関係数0.367, 危険率<0.01であった.3)腎長径と体重との関係は, 男子ではy (mm)=0.290x+78.258, 相関係数0.373, 危険率<0.01, 女子ではy (mm)=0.490x+76.286, 相関係数0.450, 危険率<0.01であった.4) 12歳より20歳の間は男女両性とも腎長径の左右差は認められなかった.5) 14歳より17歳の間は男子より女子の腎発育が進んでいた.6) 18歳以上では腎長径の左右差, 性差は認められなかった

Ultrasonography of both kidneys was performed, on 231 male and 220 females normal junior and senior high school age adolescents. 12 and 20 years. Kidneys grew in correlation with the age, height and body weight. 1) Relationship between the kidney length and the age was y (mm) = 1.747x + 67, 663 with 0.489 correlation coefficient and less than 1% risk rate in males, and y (mm) = 1.550x + 76, 719 with 0.374 correlation coefficient and less than 1% risk rate in females. 2) Relationship between the kidney length and the height was y (mm) V 0.305x + 43.852 with 0.360 correlation coefficient and less than 1% risk rate in males, and y (mm) = 0.589x + 9.042 with 0.367 correlation coefficient and less than 1% risk rate in females. 3) Relationship between the kidney length and the body weight was y (mm) = 0.290x + 78.258 with 0.373 correlation coefficient and less than 1% risk rate in males, and y (mm) = 0.490x + 76, 286 with 0.450 correlation coefficient and less than 1% risk rate in females. No difference the right and left kidney length was recognized in either sex. The growth of female kidneys was faster than that of male kidneys between the ages of 14-17. No difference was observed in length of the right or left kidney or sex with the age group of 18 or over.