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Annals of Saudi Medicine 2016The Papanicolaou (Pap) test is one screening strategy used to prevent cervical cancer in developed countries. The p16/Ki-67 immunocytochemistry is a triage test... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
The Papanicolaou (Pap) test is one screening strategy used to prevent cervical cancer in developed countries. The p16/Ki-67 immunocytochemistry is a triage test performed on Pap smears in women with atypical squamous cells of undetermined significance (ASCUS) or low grade squamous intraepithelial lesion.
OBJECTIVE
Our objective was to review studies investigating the diagnostic performance of p16/Ki-67 dual stain for triage of women with abnormal Pap tests.
DESIGN
We conducted a systematic review and meta-analysis of diagnostic test accuracy studies.
SETTINGS
We followed the protocol of systematic review of diagnostic accuracy studies.
PATIENTS AND METHODS
We searched PubMed, The Cochrane Library, BioMed Central, and ClinicalTrials.gov for relevant studies. We included research that assessed the accuracy of p16/Ki-67 dual stain and high risk human papillomavirus testing for triage of abnormal Pap smears. Review articles and studies that provided insufficient data to construct 2.2 tables were excluded. Data synthesis was conducted using a random-effects model.
MAIN OUTCOME MEASURES
Sensitivity and specificity.
RESULTS
In seven studies encompassing 2628 patients, the pooled sensitivity and specificity of p16/Ki-67 for triage of abnormal Pap smear results were 0.91 (95% CI, 0.89 to 0.93) and 0.64 (95% CI, 0.62 to 0.66), respectively. No study used a case-control design. A subgroup analysis involving liquid-based cytology showed a sensitivity of 0.91 (95%CI, 0.89 to 0.93) and specificity of 0.64 (95%CI, 0.61 to 0.66).
CONCLUSIONS
Our meta-analysis of p16/Ki-67 dual stain studies showed that the test achieved high sensitivity and moderate specificity for p16/Ki-67 immunocytochemistry for high-grade squamous intraepi.thelial lesion and cervical cancer. We suggest that p16/Ki-67 dual stain might be a reliable ancillary method identifying high-grade squamous intraepithelial lesions in women with abnormal Pap tests.
LIMITATIONS
No study in the meta-analysis examined the accuracy of the p16/Ki-67 dual stain for inter.pretation of glandular neoplasms.
Topics: Atypical Squamous Cells of the Cervix; Cyclin-Dependent Kinase Inhibitor p16; Early Detection of Cancer; Female; Humans; Ki-67 Antigen; Papanicolaou Test; Predictive Value of Tests; Squamous Intraepithelial Lesions of the Cervix; Triage; Uterine Cervical Neoplasms; Vaginal Smears
PubMed: 27478909
DOI: 10.5144/0256-4947.2016.245 -
Psycho-oncology Feb 2017As uptake of cervical screening continues to decline, this systematic review synthesises the qualitative literature on women's perceptions and experiences of cervical... (Review)
Review
OBJECTIVE
As uptake of cervical screening continues to decline, this systematic review synthesises the qualitative literature on women's perceptions and experiences of cervical screening in the context of an organised call-recall programme, in order to understand the barriers to informed uptake.
METHODS
We searched nine databases for English language peer-reviewed publications reporting on qualitative data from screening-eligible women, exploring barriers to cervical screening in countries that offer a nationally organised call-recall programme. Evidence was integrated using thematic synthesis.
RESULTS
Thirty-nine papers from the UK, Australia, Sweden and Korea were included. The majority of participants had attended screening at least once. Two broad themes were identified: (a) should I go for screening? and (b) screening is a big deal. In considering whether to attend, women discussed the personal relevance and value of screening. Women who had previously attended described how it was a big deal, physically and emotionally, and the varied threats that screening presents. Practical barriers affected whether women translated screening intentions into action.
CONCLUSIONS
The variation in women's understanding and perceptions of cervical screening suggests that interventions tailored to decisional stage may be of value in increasing engagement with the invitation and uptake of screening in those who wish to take part. There is also a need for further research with women who have never attended screening, especially those who remain unaware or unengaged, as their perspectives are lacking in the existing literature. © 2016 The Authors. Psycho-Oncology Published by John Wiley & Sons Ltd.
Topics: Australia; Comprehension; Female; Health Knowledge, Attitudes, Practice; Humans; Mass Screening; Patient Compliance; Patient Participation; Republic of Korea; Sweden; Uterine Cervical Neoplasms; Vaginal Smears; Women's Health
PubMed: 27072589
DOI: 10.1002/pon.4126 -
International Journal of Gynaecology... Mar 2016Cervical cancer screening is offered to women to identify and treat cervical intraepithelial neoplasia (CIN). (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Cervical cancer screening is offered to women to identify and treat cervical intraepithelial neoplasia (CIN).
OBJECTIVES
To support WHO guidelines, a systematic review was performed to compare test accuracy of the HPV test, cytology (cervical smear), and unaided visual inspection with acetic acid (VIA); and to determine test accuracy of HPV and colposcopy impression.
SEARCH STRATEGY
Medline and Embase were searched up to September 2012, and experts were contacted for references.
SELECTION CRITERIA
Studies of at least 100 nonpregnant women (aged ≥18years) not previously diagnosed with CIN were included.
DATA COLLECTION AND ANALYSIS
Two investigators independently screened and collected data. Pooled sensitivity and specificity, and absolute differences were calculated, and the quality of evidence assessed using GRADE (Grading of Recommendations Assessment, Development and Evaluation).
MAIN RESULTS
High to moderate quality evidence was found. The greatest difference in overtreatment occurred with VIA instead of the cervical smear (58 more per 1000 women). Differences in missed treatment ranged from 2-5 per 1000 women. For 1000 women screened positive and then sent to colposcopy, 464 would be falsely diagnosed with CIN grade 2-3 and treated.
CONCLUSIONS
Although differences in sensitivity between tests could be interpreted as large, absolute differences in missed diagnoses were small. By contrast, small differences in specificity resulted in fairly large absolute differences in overtreatment.
Topics: Acetic Acid; Colposcopy; Early Detection of Cancer; Female; Humans; Papanicolaou Test; Papillomaviridae; Sensitivity and Specificity; Uterine Cervical Neoplasms; Vaginal Smears; Uterine Cervical Dysplasia
PubMed: 26851054
DOI: 10.1016/j.ijgo.2015.07.024