Blomqvist P, Ljung H, Nyrén O, Ekbom A
Department of Medical Epidemiology, Karolinska Institutet, Stockholm, Sweden.
J Clin Epidemiol. 1998 Oct;51(10):859-65. doi: 10.1016/s0895-4356(98)00065-1.
We analyzed all appendectomies in Sweden 1989-1993 (n = 60,306) recorded in the national Inpatient Registry. Our focus was on diagnostic accuracy, incidence rate of appendicitis, perforative appendicitis, and length of stay by day of admission and hospital category. The incidence rate of appendectomy decreased by 9.8% in women compared to 4.1% in men. Since the number of patients with an end diagnosis of appendicitis remained almost constant, diagnostic accuracy increased each year. This was more pronounced in women than men, seen in all hospital categories, and was higher for those admitted during periods of low capacity (weekends/ holidays). Perforated appendicitis did not increase. Duration of hospital stay decreased continuously, especially among the oldest. We found no indications of an increased frequency of complications, such as increases in the incidence rate of perforations or in the length of stay.
我们分析了瑞典1989 - 1993年国家住院登记处记录的所有阑尾切除术（n = 60,306）。我们关注的是诊断准确性、阑尾炎发病率、穿孔性阑尾炎以及入院日期和医院类别对应的住院时间。女性阑尾切除术的发病率下降了9.8%，而男性下降了4.1%。由于最终诊断为阑尾炎的患者数量几乎保持不变，诊断准确性逐年提高。这在女性中比男性更明显，在所有医院类别中都可见，并且对于在低容量时期（周末/节假日）入院的患者更高。穿孔性阑尾炎没有增加。住院时间持续减少，尤其是年龄较大的患者。我们没有发现并发症发生率增加的迹象，例如穿孔发生率或住院时间增加。
