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表2 两组患儿住院期间生长发育情况及营养喂养情况比较

Table 2 Comparison of growth and nutritional feeding of two groups during hospitalization

Controlgroup(n=30)ImprovedKMCgroup(n=30)Oxygenfreetime(d) 16.2±18.7 19.6±26.5Hospitalizationdays(d) 33.7±16.7 40.0±25.2Dischargeweight(g)2309.4±259.12349.6±357.9Dischargelength(CM)45.8±1.845.6±1.9Weightgrowthrate(g/D)a20.5±7.618.9±8.4Heightgrowthrate(cm/D)b 0.1±0.1 0.1±0.1Parenteralnutritiontime(d)14.8±9.214.0±7.1Totaloralfeedingtime(d) 25.0±14.1 32.2±21.6

Note:a：weight growth rate=(discharge weight-admission weight) / hospitalization days;b:height growth rate = (discharge weight - admission weight) / hospitalization days