Department of Urology, Chonnam National University Medical School, Gwangju, Korea.
Int Neurourol J. 2010 Dec;14(4):245-9. doi: 10.5213/inj.2010.14.4.245. Epub 2010 Dec 31.
The precise etiology and classification of nocturia in women is not enough. We evaluated age related changes and classified the type of nocturia by age in women.
We included 118 women 20 years or older with nocturia at least one time during night time. Subjects were divided into three groups by the age: group 1, under 40 years; group 2, 40 through 59 years; group 3, 60 years and above. The causes of nocturia and its pattern changed by age in women were evaluated using 3 days frequency volume chart. Nocturia was devided into three types: nocturnal polyuria, decreased nocturnal bladder capacity and mixed type.
The mean age was 57.2±11.8 and the mean nocturnal frequency was 2.7±1.8. In all age group, noctural polyuria was the major cause for noturia (40.8%), followed by low nocturnal bladder capacity (23.7%). As a major cause of nocturia, there was a significant increase of the incidence of nocturnal polyuria in aged people: group 1, 32.4%; group 2, 41.0%; group 3: 47.6% (P<0.04).
Nocturnal polyuria and decreased nocturnal bladder capacity are the major causes of nocturia in women. Nocturnal polyuria was the major cause of nocturia with age over 60 years old. In aged women, nocturnal polyuria should be considered as a main cuase of nocturia and treated based on these result.
女性夜尿症的确切病因和分类尚不清楚。我们评估了年龄相关的变化，并按年龄对女性夜尿症的类型进行了分类。
我们纳入了 118 名年龄在 20 岁及以上、夜间至少有一次夜尿的女性。根据年龄将受试者分为三组：第 1 组，年龄小于 40 岁；第 2 组，年龄 40 至 59 岁；第 3 组，年龄 60 岁及以上。使用 3 天频率体积图表评估女性夜尿症的病因及其随年龄变化的模式。将夜尿症分为三种类型：夜间多尿型、夜间膀胱容量减少型和混合型。
平均年龄为 57.2±11.8 岁，平均夜间排尿次数为 2.7±1.8。在所有年龄组中，夜间多尿是夜尿症的主要原因（40.8%），其次是夜间膀胱容量减少（23.7%）。作为夜尿症的主要原因，夜间多尿的发病率随着年龄的增长而显著增加：第 1 组为 32.4%；第 2 组为 41.0%；第 3 组为 47.6%（P<0.04）。
夜间多尿和夜间膀胱容量减少是女性夜尿症的主要原因。夜间多尿是 60 岁以上女性夜尿症的主要原因。对于老年女性，夜间多尿应被视为夜尿症的主要病因，并根据这些结果进行治疗。
