平成13年度,第1回 21世紀出生児縦断調査 第 ,9表 子ども数・構成割合・出生時の平均身長,性,単胎―多胎,出生月,出生時の身長別 ,,,総数,40cm未満,40〜45cm,45〜50cm,50cm以上,不詳,平均身長(cm) 総数,総数,総数,47010,218,1186,25079,20375,152,49.0 ,,1月生まれ,23421,116,623,12498,10099,85,48.9 ,,7月生まれ,23589,102,563,12581,10276,67,49.0 ,単胎,総数,46045,170,925,24477,20333,140,49.0 ,,1月生まれ,22943,90,492,12201,10080,80,49.0 ,,7月生まれ,23102,80,433,12276,10253,60,49.1 ,多胎,総数,965,48,261,602,42,12,45.3 ,,1月生まれ,478,26,131,297,19,5,45.1 ,,7月生まれ,487,22,130,305,23,7,45.4 男児,総数,総数,24451,115,561,11836,11848,91,49.2 ,,1月生まれ,12069,57,287,5847,5828,50,49.2 ,,7月生まれ,12382,58,274,5989,6020,41,49.2 ,単胎,総数,23935,89,432,11515,11819,80,49.3 ,,1月生まれ,11809,43,221,5687,5813,45,49.3 ,,7月生まれ,12126,46,211,5828,6006,35,49.3 ,多胎,総数,516,26,129,321,29,11,45.4 ,,1月生まれ,260,14,66,160,15,5,45.4 ,,7月生まれ,256,12,63,161,14,6,45.4 女児,総数,総数,22559,103,625,13243,8527,61,48.7 ,,1月生まれ,11352,59,336,6651,4271,35,48.7 ,,7月生まれ,11207,44,289,6592,4256,26,48.8 ,単胎,総数,22110,81,493,12962,8514,60,48.8 ,,1月生まれ,11134,47,271,6514,4267,35,48.7 ,,7月生まれ,10976,34,222,6448,4247,25,48.8 ,多胎,総数,449,22,132,281,13,1,45.1 ,,1月生まれ,218,12,65,137,4,-,44.9 ,,7月生まれ,231,10,67,144,9,1,45.4 総数,総数,総数,100.0,0.5,2.5,53.3,43.3,0.3,・ ,,1月生まれ,100.0,0.5,2.7,53.4,43.1,0.4,・ ,,7月生まれ,100.0,0.4,2.4,53.3,43.6,0.3,・ ,単胎,総数,100.0,0.4,2.0,53.2,44.2,0.3,・ ,,1月生まれ,100.0,0.4,2.1,53.2,43.9,0.3,・ ,,7月生まれ,100.0,0.3,1.9,53.1,44.4,0.3,・ ,多胎,総数,100.0,5.0,27.0,62.4,4.4,1.2,・ ,,1月生まれ,100.0,5.4,27.4,62.1,4.0,1.0,・ ,,7月生まれ,100.0,4.5,26.7,62.6,4.7,1.4,・ 男児,総数,総数,100.0,0.5,2.3,48.4,48.5,0.4,・ ,,1月生まれ,100.0,0.5,2.4,48.4,48.3,0.4,・ ,,7月生まれ,100.0,0.5,2.2,48.4,48.6,0.3,・ ,単胎,総数,100.0,0.4,1.8,48.1,49.4,0.3,・ ,,1月生まれ,100.0,0.4,1.9,48.2,49.2,0.4,・ ,,7月生まれ,100.0,0.4,1.7,48.1,49.5,0.3,・ ,多胎,総数,100.0,5.0,25.0,62.2,5.6,2.1,・ ,,1月生まれ,100.0,5.4,25.4,61.5,5.8,1.9,・ ,,7月生まれ,100.0,4.7,24.6,62.9,5.5,2.3,・ 女児,総数,総数,100.0,0.5,2.8,58.7,37.8,0.3,・ ,,1月生まれ,100.0,0.5,3.0,58.6,37.6,0.3,・ ,,7月生まれ,100.0,0.4,2.6,58.8,38.0,0.2,・ ,単胎,総数,100.0,0.4,2.2,58.6,38.5,0.3,・ ,,1月生まれ,100.0,0.4,2.4,58.5,38.3,0.3,・ ,,7月生まれ,100.0,0.3,2.0,58.7,38.7,0.2,・ ,多胎,総数,100.0,4.9,29.4,62.6,2.9,0.2,・ ,,1月生まれ,100.0,5.5,29.8,62.8,1.8,-,・ ,,7月生まれ,100.0,4.3,29.0,62.3,3.9,0.4,・