조사기간에 다른 유즙 섭취 측정치의 비교

Comparison of the Parameters of Lactational Performance according to the Periods of Measurement

본 연구는 출생 후 3개월령까지의 모유영양아 10명과 인공영양아 20명을 대상으로 하여 유즙 섭취 측정치가 조사 기간에 따라 어떻게 다른지 비교하여 걱정한 측정 기간을 설정하고자 실시되었다. 1일 유즙 섭취량, 1회 유즙 섭취량 및 1일 유즙 섭취횟수를 24, 48 및 72시간 동안 조사한 결과 세 측정치 모두 조사기간의 차이에 따른 유의성은 없었다. 영아의 유즙 섭취량이나 횟수는 개체간 또는 개체내연이가 크다고 알려져 있으나 본 실험 결과는 24시간의 측정치가 48 및 72시간 측정치와 유의하게 다르지 않아 24시간의 측정치는 타당성을 지난다고 판단된다.

This study was conducted to evaluate the validity of lactational performance parameters according to the periods of measurement. The subjects enrolled were 10 breast-fed and 20 formula-fed infants. Ingested volumes of milk per day and per feed ing and feeding frequency per day of the infants were measured for 24, 48 and 72 hours, respectively at 1. 2 and 3 months age. For breast-fed infants, ingested volume of milk was estimated by test-weighing method and that for formula-fed infants was tested by direct measurement method. There were no significant differences among the values of ingested milk volume per day and per feeding obtained by 24-, 48- and 72-hour measurement at all 1, 2 and 3 months age in breast-fed as well as formula-fed infants. Also, there were no significant differences among the data of feeding frequency per day obtained by 3 different periods of measurement except for the data estimated in breast-fed infants at 3 months age. The results of this study indicate that the values of lactational performance parameters obtained for 24-hour measurement are valid.