Ahlstrand C, Tiselius H G
Scand J Urol Nephrol. 1981;15(2):143-6. doi: 10.3109/00365598109179591.
In a Swedish district served by only one hospital the annual incidence of urinary stone colic was estimated to 1.4 per 1000 inhabitants. Sixty-two per cent of the patients were treated entirely as out patients whereas 9% required some form of surgery during the study. Thirty-seven per cent of the patients were recurrent stone formers. No significant seasonal variation in stone incidence was noted. A definite reason for stone formation could be established in 6%, and among 56 patients with recurrent stone disease run through a biochemical investigation, abnormal findings were recorded in 70%.
在瑞典一个仅由一家医院提供服务的地区，估计尿石绞痛的年发病率为每1000名居民中有1.4例。62%的患者完全作为门诊病人接受治疗，而在研究期间，9%的患者需要某种形式的手术。37%的患者是复发性结石形成者。未发现结石发病率有明显的季节性变化。6%的患者能够确定结石形成的确切原因，在对56例复发性结石病患者进行生化检查时，70%的患者有异常发现。
