前瞻性人口和健康群组是评估儿童死亡率和其他人口指标的最准确方法。

Prospective demographic and health cohorts are the most accurate method to assess child mortality and other demographic indices.

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只有一个研究(ERSPC)记录了在预先指定、55至69岁男性的次群组中，摄护腺癌死亡率有21%的显著降低。

Only one study (ERSPC) reported a 21% significant reduction of prostate cancer-specific mortality in a pre-specified subgroup of men aged 55 to 69 years.

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次群组分析指出，摄护腺癌死亡率不受筛检受试者的年龄影响。

Subgroup analyses indicated that prostate cancer-specific mortality was not affected by the age at which participants were screened.

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