年龄因素：年龄越大失眠发生率越高。

The age factor: the older the higher incidence of insomnia.

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虽然睡眠需要未必随年龄增长而减少，但睡眠障碍的发生率似乎是随年龄而增加的，特别是妇女。

Although the need for sleep does not necessarily decrease with age the incidence of sleep disturbances appears to increase with age particularly among women.

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老年人不同年龄组别之间，各指标检测结果随着年龄增大皆有降低的趋势，且老年人贫血发生率相继增高。

Among the different age groups, the levels all decrease with the increase of age, and the incidence of anemia in the old people is higher.

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