Objective To study the importance of back pain-lassitude as the key symptom in the differentiation of kidney-yang deficiency syndrome by investigating its distribution in aged people. Methods Totally 4140 cases of aged people were investigated according to the 26 main symptoms selected from the questionnaire of kidney-yang deficiency syndrome. They were further divided into the pain group (2037 cases) and non pain group (2103 cases). The distributions of 26 main symptoms were compared between two groups. Correlation analysis was applied to analyze the relationship between back pain-lassitude and each of 26 symptoms. Results Aged people with back pain-lassitude accounted for 49.2% in all investigated. Except for impotence and seminal emission, facial edema, frequent urination, chronic cough with asthma, clear thin sputum in total 26 items, there were 21 symptoms were found significant difference in the incidence between the two groups (P<0.01). There was significant correlation between back pain-lassitude and ten symptoms including aversion to cold, cold limbs, lower extremity edema, clear abundant urine, frequent night urination, non-transformation of food, pale and glossy tongue fur, delay and forceless pulse, dizziness, chronic cough with asthma. Conclusion The above described ten symptoms provide the evidence that the existence of back pain-lassitude can make the diagnosis of kidney-yang deficiency syndrome.%目的 调查腰痛酸软在老龄人群中的分布状况,探讨其在老龄肾阳虚证辨证中的重要性.方法 筛选26项肾阳虚主要症状,并将调查对象分成腰痛酸软组(2037 例)和无腰痛酸软组(2103 例),分析各症状在2 组中的分布情况及其与腰痛酸软的相关性.结果 有腰痛酸软者占调查总数的49.2%.26 项症状中,除阳痿滑泄、面目水肿、小便频数、久病咳喘、痰白清稀外,其余21 个症状的出现频率2 组比较差异有统计学意义(P ＜0.01).畏寒怕冷、四肢发冷、下肢水肿、小便清长、夜尿频多、完谷不化、苔白水滑、脉迟无力、头晕目眩、久病咳喘和腰痛酸软显著相关(P ＜0.001).结论 腰痛酸软及肾阳虚证主症的伴发出现对肾阳虚证诊断的客观化和标准化具有重要意义.
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