Brewster Wendy R, Hubbell F Allan, Largent Joan, Ziogas Argyrios, Lin Fritz, Howe Susan, Ganiats Theodore G, Anton-Culver Hoda, Manetta Alberto
Department of Medicine, School of Medicine, University of California, Irvine 92868-3200, USA.
JAMA. 2005 Nov 2;294(17):2182-7. doi: 10.1001/jama.294.17.2182.
The incidence of cervical cancer is higher among low-income and minority women who have never undergone a conventional Papanicolaou test or who do not follow up after testing. Screening has been shown to reduce cervical cancer incidence rates.
To determine the feasibility and acceptability of immediately treating women with severely abnormal Papanicolaou test results by using a single-visit cervical cancer screening and treatment program and to compare treatment rates and 12-month follow-up rates with those of women who received usual care.
DESIGN, SETTING, AND PARTICIPANTS: Randomized controlled trial conducted among 3521 women aged 18 years or older recruited between January 1999 and April 2002 at US community health centers located in predominantly Latino underserved areas.
Women randomized to usual care (n = 1805) were discharged immediately after examination. Women randomized to the single-visit group (n = 1716) remained at the clinic until the results of their conventional Papanicolaou test were available. Large loop electrosurgical excision procedure was performed in single-visit patients with either a diagnosis of a high-grade squamous intraepithelial lesion (HGSIL)/atypical glandular cells of undetermined significance (AGUS) or suspicion of carcinoma. All other patients with abnormal Papanicolaou test results were referred to abnormal cytology clinics or elected to receive follow-up care outside the study's medical system.
Treatment rates for HGSIL/AGUS at 6 months, follow-up rates at 6 months for lower-grade lesions, and 1-year follow-up rates for all patients.
The rate of abnormal Papanicolaou test results was 4.1%. One percent of results showed high-grade lesions. In the single-visit group, the mean visit time was 2.8 hours and the mean time for delivery and processing of the Papanicolaou tests was 66 minutes. Six months after randomization, 14 (88%) of 16 single-visit and 10 (53%) of 19 usual care patients with HGSIL/AGUS had completed treatment. Fifty percent in the single-visit program and 53% of usual care with less abnormal Papanicolaou tests completed treatment within 6 months. Overall, 36% in each group presented for a follow-up Papanicolaou test 1 year later. Women in the single-visit group with high-grade lesions (10/16; 63%) were significantly more likely to attend follow-up for Papanicolaou tests 12 months later than women with similar lesions in the usual care group (4/19; 21%).
For cervical cancer screening, the single-visit program was feasible and the degree of acceptability was high in this underserved population. Single visit programs provide an opportunity to increase the rate of immediate treatment and follow-up of women with severely abnormal Papanicolaou test results. This strategy did not improve follow-up rates for women with less-abnormal results. Trial Registration http://ClinicalTrials.govIdentifier: NCT00237562.
宫颈癌的发病率在从未接受过传统巴氏试验或检测后未进行随访的低收入和少数族裔女性中更高。筛查已被证明可降低宫颈癌发病率。
通过单次就诊宫颈癌筛查和治疗方案,确定立即治疗巴氏试验结果严重异常女性的可行性和可接受性,并将治疗率和12个月随访率与接受常规护理的女性进行比较。
设计、地点和参与者:1999年1月至2002年4月在美国主要为拉丁裔服务不足地区的社区卫生中心招募的3521名18岁及以上女性中进行的随机对照试验。
随机分配至常规护理组(n = 1805)的女性在检查后立即出院。随机分配至单次就诊组(n = 1716)的女性留在诊所,直到获得其传统巴氏试验结果。对诊断为高级别鳞状上皮内病变(HGSIL)/意义不明确的非典型腺细胞(AGUS)或疑似癌症的单次就诊患者进行大环形电外科切除术。所有其他巴氏试验结果异常的患者被转诊至异常细胞学诊所或选择在研究医疗系统之外接受随访护理。
6个月时HGSIL/AGUS的治疗率、低级别病变6个月时的随访率以及所有患者的1年随访率。
巴氏试验结果异常率为4.1%。1%的结果显示为高级别病变。在单次就诊组中,平均就诊时间为2.8小时,巴氏试验结果的交付和处理平均时间为66分钟。随机分组6个月后,16名单次就诊且诊断为HGSIL/AGUS的患者中有14名(88%)完成了治疗,19名常规护理患者中有10名(53%)完成了治疗。单次就诊方案中有50%的患者以及巴氏试验结果异常程度较低的常规护理患者中有53%在6个月内完成了治疗。总体而言,每组36%的患者在1年后进行了随访巴氏试验。单次就诊组中患有高级别病变的女性(10/16;63%)在12个月后进行巴氏试验随访的可能性显著高于常规护理组中患有类似病变的女性(4/19;21%)。
对于宫颈癌筛查,单次就诊方案是可行的,并且在这个服务不足的人群中可接受程度较高。单次就诊方案为提高巴氏试验结果严重异常女性的立即治疗率和随访率提供了机会。该策略并未提高结果异常程度较低女性的随访率。试验注册:http://ClinicalTrials.gov标识符:NCT00237562