PROBLEM TO BE SOLVED: To provide an abdominal girth estimating apparatus for estimating the abdominal girth of a user considering the original abdominal girth of the user and the change of the test value in the elapse of time.SOLUTION: The abdominal girth estimating apparatus includes weight-abdominal girth difference computing means 110 for computing the weight difference and the abdominal girth difference indicating the difference between the original weight/abdominal girth at one past time and the weight/abdominal girth thereafter by person from the health checkup information regression coefficient computing means 111 for computing the average value of the original abdominal girth by section by dividing the original abdominal girth into prescribed sections, analyzing the regression without a constant term with the abdominal girth difference as an objective variable and the weight difference as an explanatory variable and computing the regression coefficient of the weight difference approximate line creating means 112 for creating the approximate line indicating the relation between the average value of the original abdominal girth and the regression coefficient of the weight difference and estimation expression creating means 105 for creating the expression for estimating the abdominal girth to estimate the abdominal girth in the second time and thereafter by multiplying the regression coefficient computed by inputting the original abdominal girth in the approximate line and the weight difference together, and further by adding the original abdominal girth.COPYRIGHT: (C)2009,JPO&INPIT【課題】 ユーザの元々の腹囲と検査値の経時的な変化を考慮して腹囲を推定する腹囲推定装置を提供する。【解決手段】 健診情報から,健診者別に,ある過去の1時点の体重・腹囲を示す元腹囲・元体重とその時点以降の体重・腹囲との差を示す体重差・腹囲差を算出する体重・腹囲差算出手段110と,元腹囲を所定の区分に分け,区分別に元腹囲の平均値を算出し,区分別に,腹囲差を目的変数,体重差を説明変数として,定数項なしの回帰分析を行い,体重差の回帰係数を算出する回帰係数算出手段111と,元腹囲の平均値と体重差の回帰係数の関係を示す近似線を作成する近似線作成手段112と,近似線に元腹囲を入力して算出した体重差の回帰係数に,体重差を乗じ,さらに元腹囲を加えることで2回目以降の腹囲を推定する腹囲推定式を作成する推定式作成手段105を設ける。【選択図】 図1
