CMAJ:以学校为基础的HPV疫苗接种可降低高级别宫颈异常率

2016-07-12 Seven L 译 MedSci原创

在加拿大进行的一项病例对照研究结果显示,以学校为基础接受HPV疫苗接种的女性,有更低的高级别宫颈异常率和更高的宫颈癌筛查率。此外,结果还显示,只有接受推荐剂量的疫苗女性,风险才降低。阿尔伯塔健康服务的Huiming Yang博士他的同事们试图确定疫苗接种方案对宫颈癌筛查结果的影响。该研究纳入了10204名出生在1994-1997年之间的女性,在2012-2015年之间至少进行了一次巴氏试验。队列中

在加拿大进行的一项病例对照研究结果显示,以学校为基础接受HPV疫苗接种的女性,有更低的高级别宫颈异常率和更高的宫颈癌筛查率。此外,结果还显示,只有接受推荐剂量的疫苗女性,风险才降低。

阿尔伯塔健康服务的Huiming Yang博士他的同事们试图确定疫苗接种方案对宫颈癌筛查结果的影响。该研究纳入了10204名出生在1994-1997年之间的女性,在2012-2015年之间至少进行了一次巴氏试验。

队列中56%(n = 5712)的女性没有接种疫苗,剩下的44%(n = 4492)接受至少一个剂量的疫苗接种。数据显示,接种疫苗的妇女有较高的筛查(13% vs. 11.4%; P < 0.001),从疫苗接种到巴氏试验的中位数时间为1374天(四分位距,1119-1603)。

共有8723名女性未检查出宫颈异常,并被视为对照组。其余1481例患者在筛查过程中出现宫颈异常。此外,研究者发现,宫颈异常的妇女往往是老年人(P = 0.046),检查更有可能发生于卡尔加里的实验室(P < 0.001)。

大多数患者的异常是低级别的(93.5%; n = 1,384),如不确定意义的非典型鳞状细胞或低度鳞状上皮内病变;还有0.5% (n = 97)的异常患者是高级别的,包括非典型鳞状细胞,其中高级别病变不能排除,或高级别鳞状上皮内病变。

接种完成三个或更多剂量疫苗的女性占83.3% (n = 3,675)。更年轻的女性更容易接种至少一个剂量的疫苗(18岁 vs. 21岁, 76.6% vs. 20.4%; P < 0.001)。

未接种疫苗的女性与完整接种的女性相比,有更大的异常细胞学结果比例(16.1% vs. 11.8%)。总的来说,接受完整疫苗剂量的女性细胞学检查结果异常的可能性更低(OR = 0.72; 95% CI, 0.63-0.82)。

接受部分剂量疫苗的女性,其校正后的细胞学异常结构OR=1.08 (95% CI, 0.84-1.38);提示该方案缺乏有效性。接受部分剂量疫苗的女性,高级别异常的OR=0.16 (95% CI, 0.02-1.17)。

结果表明,接种HPV疫苗可降低高级别宫颈异常率,提高宫颈癌筛查率,但是仅且只对接种完整剂量疫苗的女性有用。

原始出处:

Kim J, et al. Effect of human papillomavirus vaccination on cervical cancer screening in Alberta.Can Med Assoc J. 2016;doi:10.1503/cmaj.151528.

School-based HPV vaccination program reduces risk for precancerous lesions among female students.
Healio.July 11, 2016

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    2016-10-08 1e10c84am36(暂无匿称)

    文章很棒,继续学习

    0

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    2016-07-16 oo902

    必须接受完整剂量疫苗

    0

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    2016-07-14 一闲

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