Acceptability of self-sampling for etiological diagnosis of mucosal sexually transmitted infections (STIs) among transgender women in a longitudinal cohort study in São Paulo, Brazil

ABSTRACT This study conducted among transgender women in São Paulo, Brazil assessed the acceptability and suitability of screening sexually transmitted infections (STIs), such as Chlamydia trachomatis and Neisseria gonorrhoeae, by sampling multiple anatomical sites (i.e. urethral, anorectal, oropharyngeal, and neovaginal), and utilizing self- or provider-collection methods. First, a convenience sample of 23 cohort participants were recruited during a scheduled study visit between October and November 2018. Data collection was through a short investigator-led quantitative survey in Portuguese, and included presentation of investigator-designed, gender-neutral instructional diagrams to guide self-sampling. Three supplemental focus group discussions (FGDs) with a total of 30 participants guided by semi-structured script were conducted in Portuguese between September and October 2019. All participants reported being assigned male sex at birth and self-identified with a feminine gender identity at time of study. All survey respondents (100%; n = 23) indicated willingness to provide samples for STI screening during a future study visit. Preference was for self-collection of urine samples (83%; n = 19), urethral swabs (82%; n = 18), and anorectal swabs (77%; n = 17). A lower preference for self-collection of oropharyngeal swabs (48%; n = 11) was observed. Most respondents (78%; n = 18) indicated that they would not prefer specimens to be collected by a health professional, mainly due to 'more privacy' (72%; n = 13). All respondents indicated that they would feel comfortable to provide a self-collected sample based on instructional diagrams shown. In FGDs, although the collection by a health professional was described as a technically safer option for some participants, there was a preference for self-collection to avoid discomfort and embarrassment in exposing the body. Overall, this sub-study suggested acceptability among transgender women of introducing self-sampling for etiological diagnosis of STIs from potential infection sites. Uptake and usability will be explored further in a cross-sectional STI prevalence study of transgender women in Brazil.

Creencias tradicionales mexicanas y su relación con la aceptación de la autotoma vaginal para la detección del VPH / Traditional Mexican beliefs and their relationship with the acceptance of vaginal self-sampling for HPV detection

Resumen OBJETIVO: Conocer el grado de aceptación de la autotoma vaginal y su relación con variables psicosocioculturales que prevalecen en México. MATERIALES Y MÉTODOS: Estudio observacional, prospectivo, transversal y descriptivo, efectuado entre 2017 y 2018 en mujeres del estado de Guanajuato. Se aplicaron cuestionarios y entrevistas antes y después de la toma de la muestra mediante la autotoma. El análisis estadístico incluyó medidas de tendencia central, medidas de dispersión, frecuencias y proporciones. Las diferencias entre grupos se analizaron con las pruebas de Wilcoxon y t de Student. RESULTADOS: Se estudiaron 85 mujeres con edad promedio de 37.82 años (± 9.82). Si bien 75 participantes declararon no conocer el procedimiento, 80 accedieron a practicarlo. Se encontró que la mayoría de las mujeres prefiere la autotoma a la inspección ginecológica tradicional. Se observaron dos perfiles sociopsicológicos opuestos entre las mujeres que prefieren la autotoma por "pena" y las que optan por ella por su "facilidad". CONCLUSIONES: La autotoma fue un método de muestreo completamente viable en el contexto en el que se llevó a cabo esta investigación. Si bien se observaron barreras psicosocioculturales, la autotoma se prefirió entre las mujeres que informaron acudir menos al ginecólogo, por lo que puede constituir una estrategia para las mujeres con baja vigilancia médica.

Abstract OBJECTIVE: To know the degree of acceptance of vaginal autotomy and its relationship with psychosocial-cultural variables prevailing in Mexico. MATERIALS AND METHODS: Observational, prospective, cross-sectional and descriptive study, carried out between 2017 and 2018 in women in the state of Guanajuato. Questionnaires and interviews were applied before and after sampling by autotoma. Statistical analysis included measures of central tendency, measures of dispersion, frequencies and proportions. Differences between groups were analyzed with Wilcoxon and Student's t-tests. RESULTS: Eighty-five women with a mean age of 37.82 years (± 9.82) were studied. Although 75 participants stated that they were unaware of the procedure, 80 agreed to undergo it. It was found that the majority of women preferred autotoma to traditional gynecological inspection. Two opposite socio-psychological profiles were observed between women who prefer autotomy for "embarrassment" and those who opt for it because of its "ease". CONCLUSIONS: Autotomography was a completely feasible sampling method in the context in which this research was conducted. Although psychosocio-cultural barriers were observed, autotoma was preferred among women who reported less frequent visits to the gynecologist, so it may be a strategy for women with low medical vigilance.

Nuevas estrategias de prevención y control de cáncer de cuello uterino en Chile / New strategies for the prevention and control of cervical cancer in Chile

Resumen: Objetivos: Discutir el cáncer cervicouterino (CC), el virus del papiloma humano (VPH), el programa de control del CC y proponer alternativas para Chile. Material y métodos: Se analiza el programa nacional del CC 1966-2015 y la guía clínica 2015-2020, la prevalencia de VPH en mujeres y en casos de CC; la infección y serología de VPH; la autotoma; la precisión y rentabilidad del tamizaje con VPH contra el Papanicolaou y las opciones de triaje en VPH AR positivas. Resultados: En Chile mueren 600 mujeres (principalmente de bajos recursos) al año por CC. La cobertura del Papanicolaou es < 70%, sensibilidad muy inferior al test de VPH, por lo que el cambio es rentable. Desde 2015 se vacuna contra VPH a niñas menores de 13 años. Conclusiones: Las condiciones técnicas y económicas existen en Chile para lograr una mejoría sustancial del CC: se sugiere el reemplazo del Papanicolaou por el examen de VPH; tamizaje cada cinco años con opción de autotoma; triaje con base en la tipificación de VPH 16/18 o Papanicolaou.

Abstract: Objective: To discuss cervical cancer (CC), Human Papilloma Virus (HPV), CC control program and propose alternatives for Chile. Materials and methods: We analyzed the national program of CC 1966-2015 and the clinical CC guideline 2015-2020; HPV prevalence in women and in cases of CC; HPV infection and serology; the self-vaginal sample; the accuracy and cost-effectiveness of screening with HPV versus Papanicolaou, and triage options among HPV-AR positives. Results: 600 women die of CC each year in Chile, mainly from low resources. Papanicolaou coverage is <70%; Papanicolaou sensitivity is much lower than HPV test. Change from Papanicolaou to HPV test is cost-effective. Since 2015, girls under 13 have been vaccinated against HPV. Conclusions: There are the technical and economic conditions for a substantial improvement of CC in Chile: replacement of the Papanicolaou by HPV; screening every five years, with the option of self-sampling, and triage based on HPV 16/18 or Papanicolaou typing.

HPV vaginal self-sampling among women non-adherent to Papanicolaou screening in Chile / Autotoma vaginal para detección de virus del papiloma humano en mujeres no adherentes a tamizaje con Papanicolaou en Chile

OBJECTIVE: To evaluate acceptance, preference and compliance with referral of vaginal self-sampling for the detection of Human papillomavirus (HPV) among women non-adherent to Papanicolaou (Pap) screening in Santiago, Chile. MATERIALS AND METHODS: Using multistage sampling we identified women aged 30-64 years who reported not receiving a Pap test in the previous three years and offered them Pap testing at the health center or vaginal self-sampling for HPV testing at home. Self-collected samples were analyzed with hybrid capture. All HPV+ women were referred for colposcopy, biopsy and treatment when needed. RESULTS: 1 254 eligible women were contacted; 86.5% performed self-sampling and 8.1% refused; 124 women were HPV+ (11.4%: 95%CI 9.6-13.5) of whom 85.5% attended colposcopy; 12 had CIN2+ (1.1%: 95 %CI 0.5-1.7). CONCLUSION: HPV vaginal self-sampling can be easily implemented in Chile and could improve coverage, successfully reaching women who drop out of the screening program.

OBJETIVO: Evaluar la aceptación, preferencia y adherencia a seguimiento de la autotoma vaginal para detección del virus del papiloma humano (VPH) en mujeres inasistentes a Papanicolaou (Pap) en Santiago, Chile. MATERIAL Y MÉTODOS: Mediante un muestreo polietápico se identificaron mujeres entre 30 y 64 años inasistentes a Pap por < 3 años, invitándolas a realizarse un Pap en su centro de salud o una autotoma vaginal a domicilio. Las muestras fueron analizadas con captura de híbridos. Las mujeres VPH+ fueron referidas a colposcopía, biopsia y tratamiento en caso necesario. RESULTADOS: 1 254 mujeres elegibles fueron contactadas; 86.5% aceptó la autotoma vaginal y 8.1% la rechazó; 124 mujeres resultaron VPH+ (11.4%: IC95% 9.6-13.5) de las que 85.5% asistió a colposcopía; 12 tenían CIN2+ (1.1%: IC95% 0.5-1.7). CONCLUSIÓN: La autotoma vaginal para detección de VPH es implementable en Chile y su utilización podría mejorar la cobertura del programa rescatando a mujeres inasistentes.