作者选取888例从出生到16岁之间儿童的腹部或骨盆的X线平片资料,依据年龄分成17个组测量统计耻骨联合的横宽度,其中1岁以下者分为0～6月和7～12月龄两组。测得的结果表明耻骨联合的间宽随年龄递增而减小,各组的均值分布在7.4～5.4mm之间,无性别间差异。所得数据的对数回归标绘图显示耻间距宽度在1岁内减低最显著,4岁后趋于缓减期,16岁组则接近于成人值(r=0.94,P<0.001)。作者认为,耻骨上枝的 The author selected 888 cases of children from birth to 16 years of age abdomen or pelvic X-ray film data, according to age divided into 17 groups were measured statistical horizontal width of the pubic symphysis, of which 1 year of age is divided into 0 to June and 7 ~ 12 months old two groups. Measured results show that the symphysis pubis width decreases with age, the mean distribution of each group between 7.4 ~ 5.4mm, no gender differences. The logarithmic regression plots of the data obtained showed that the shame intervening width was most significantly reduced at 1 year of age and decreased at 4 years of age, while the age at 16 years was close to the adult value (r = 0.94, P <0.001). The author believes that suprapubic branches