Snowdon J
Prince of Wales Hospital, Randwick, NSW, Australia.
Br J Psychiatry. 1991 Apr;158:485-90. doi: 10.1192/bjp.158.4.485.
In a replication of an earlier published study, case notes of 75 elderly in-patients with bipolar affective disorder were examined. Few of the patients had experienced a manic episode before the age of 40. Mean age of onset of affective disorder was 46 years, and first manic episode at 60 years. Cerebral insults before the first manic attacks were recorded in a substantial number of cases, and a family history of mental illness was less common among this group. Bipolar affective disorder is relatively common as a reason for admission of elderly patients.
在一项对早期发表研究的重复研究中，对75名患有双相情感障碍的老年住院患者的病历进行了检查。很少有患者在40岁之前经历过躁狂发作。情感障碍的平均发病年龄为46岁，首次躁狂发作年龄为60岁。在相当多的病例中记录到首次躁狂发作前有脑部损伤，且该组患者中精神疾病家族史较少见。双相情感障碍作为老年患者入院的原因相对常见。
