An examination support method for supporting an electrocardiogram examination of a subject using a wear on which medical equipment including electrocardiography equipment, a plurality of electrodes and one or more size adjustment mechanisms are loaded, the examination support method comprising the consecutive steps of: measuring body size information including an underbust size of the subject using a first measurement apparatus; ordering a wear using an information processing apparatus, the ordering including transmitting order instruction information including the body size information to an order reception apparatus; selecting a wear to be put on the subject from a plurality of wears of a plurality of sizes on a basis of the underbust size of the subject received by the order reception apparatus; determining (205, 211), by the order reception apparatus, an adjustment position (RP1-21, PM1-21, PJ-21) of the one or more size adjustment mechanisms on the wear based on the underbust size; sending (S16, S17) the selected wear on which the adjustment position is indicated to the subject; putting the wear on a torso portion of the subject; adjusting a pressure on the torso portion of the subject by positioning the one or more size adjustment mechanisms at the adjustment position; performing electrocardiogram measurements for a period during which the subject is wearing the wear; returning the wear; connecting a data processing apparatus wiredly or wirelessly with the medical equipment loaded on the returned wear and reading out electrocardiogram measurement data measured for the period during which the subject has put on the wear; reguesting electrocardiographic analysis by transmitting the electrocardiogram measurement data to an analysis apparatus for electrocardiographic analysis; and performing (S21, S22) the electrocardiogram examination by the analysis apparatus. measuring body size information including an underbust size of the subject using a first measurement apparatus; ordering a wear using an information processing apparatus, the ordering including transmitting order instruction information including the body size information to an order reception apparatus; selecting a wear to be put on the subject from a plurality of wears of a plurality of sizes on a basis of the underbust size of the subject received by the order reception apparatus; determining (205, 211), by the order reception apparatus, an adjustment position (RP1-21, PM1-21, PJ-21) of the one or more size adjustment mechanisms on the wear based on the underbust size; sending (S16, S17) the selected wear on which the adjustment position is indicated to the subject; putting the wear on a torso portion of the subject; adjusting a pressure on the torso portion of the subject by positioning the one or more size adjustment mechanisms at the adjustment position; performing electrocardiogram measurements for a period during which the subject is wearing the wear; returning the wear; connecting a data processing apparatus wiredly or wirelessly with the medical equipment loaded on the returned wear and reading out electrocardiogram measurement data measured for the period during which the subject has put on the wear; reguesting electrocardiographic analysis by transmitting the electrocardiogram measurement data to an analysis apparatus for electrocardiographic analysis; and performing (S21, S22) the electrocardiogram examination by the analysis apparatus.