30例受试者分成2组,1组进标准餐,1组进除酸性食物和饮料之外的普通膳食。2组正常对照各5例,监测期ph<4的次数、pH<4累积时间及其占监测时的百分率无明显差别。如以各指标均值加二个标准差(X+2SD)为阈值区分生理性和病理性GER,则标准餐组病理性GER检出率比非标准餐组为高,因此要确定生理性和病理性GER的界限尚需统一饮食标准。 30 subjects were divided into two groups, one group into the standard meal, one group into the general diet except acidic foods and beverages. There were 5 normal controls in each group, the number of ph <4 in the monitoring period, the time of pH <4 accumulation and its percentage in monitoring were not significantly different. For example, if the mean value of each index plus two standard deviations (X + 2SD) is used as a threshold to distinguish between physiological and pathological GERs, the detection rate of pathological GER in the standard meal group is higher than that in the non-standard meal group, and therefore physiological and pathological The boundaries of sexual GER still need a unified dietary standards.