In many countries with good measles control, an increasing age at onset of SSPE has been observed attributable to cases that acquired measles infection at a time when the disease was more prevalent.

在许多麻疹已经得到很好控制的国家SSPE的发病年龄有增高趋势，观察发现这些病例都是因为在过去麻疹较严重流行时期感染了麻疹的缘故。

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The average age was 63 at the study's onset.

研究开始时，她们的平均年龄为63岁。

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Predictors of poor prognosis are greater baseline impairment (where patients are greatly impaired at the onset), cognitive disturbance, old age, and lack of temors at the onset of the disease.

较严重的基线损害(患者发病初期，身体机能已严重受损)、认知障碍、年老及发病初期没有震颤症状，这些因素指示不良预后。

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Magazines were one of the earliest mechanisms for social grouping, and before the onset of the digital age, publishers were very good at building and monetizing highly valuable networks of similar people built around different content verticals.

FORBES: For Magazines, The Digital Future Lies Beyond The iPad

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'