Results 5 patients were all male. The average onset age was 20 2 years. The clinical manifestation was characterized by slowly progressive course and hemiparesis as the most common symptom.

结果5例患者全部为男性，平均发病年龄2 0 .2岁，最常见的临床症状是偏侧肢体无力，一般呈慢性进展性病程。

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The survey found the average age for the onset of puberty of Guangzhou's children dropped to 11 years old from the previous age of 13.

调查发现，广州儿童进入青春期的平均年龄从之前的13岁下降到了11岁。

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The current average age for the onset of puberty for girls is 10.75.

目前女孩青春期的平均年龄是10.75岁。

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Where both twins had the disease, there was an average of 3.66 years difference in age at onset between 25 sets of identical twins, and 8.12 years difference between 20 sets of fraternal (dizygotic) twins, suggesting genes had a role in determining when Alzheimer's was seen.

BBC: NEWS | Health | Alzheimer's risk 'is 80% genetic'