Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992
Background/objective: Long-term follow-up of patients with positive tests for Human Papilloma Viruses (HPV) is rarely studied. The study objective was to compare HPV status at baseline with the outcome of CIN3+ in the follow-up period of 28 years. Materials and methods: All women referred to the HPV...
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ftunivtroemsoe:oai:munin.uit.no:10037/26619 2023-05-15T17:43:41+02:00 Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992 Riibe, Marit Østlyngen 2020-08-30 https://hdl.handle.net/10037/26619 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/26619 openAccess Copyright 2020 The Author(s) VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Gynekologi og obstetrikk: 756 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Gynecology and obstetrics: 756 MED-3950 Master thesis Mastergradsoppgave 2020 ftunivtroemsoe 2022-09-07T23:00:14Z Background/objective: Long-term follow-up of patients with positive tests for Human Papilloma Viruses (HPV) is rarely studied. The study objective was to compare HPV status at baseline with the outcome of CIN3+ in the follow-up period of 28 years. Materials and methods: All women referred to the HPV outpatient clinic at the University Hospital of Northern Norway (UNN) in 1990-1992, having a HPV test performed during that time, were included in this retrospective cohort. An exposed cohort with positive high-risk (HR) HPV test was compared to a control cohort with negative HR-HPV test. Both cohorts were followed up to the last time-point of observation of 28 years. Results: The risk of CIN2+ among HPV positive and HPV negative women was 57.0% (127/223) and 17.4% (73/419), respectively (p<0.01). Among the 223 HR-HPV positive women, 102 (45.7%) developed CIN3+, while 44 (10.5%) out of 419 HPV negative women developed CIN3+ (p<0.01). The overall cumulative incidence of CIN3+ was 22.7%. Women with HPV33 had the highest incidence of CIN3+, but HPV16 provided the greatest long-term risk of CIN3+. The incidence of CIN3+ was similar for women with a negative HR-HPV test and women with a positive low-risk (LR) HPV test, including HPV 6 and 11. Conclusion and consequences: HPV status at baseline is predictive for women ́s subsequent risk of developing CIN3+. Women with a positive HR-HPV test in 1990-1992 had a significantly higher risk of CIN3+ during 28 years of follow-up compared to HR-HPV negative women. The cumulative incidence of CIN3+ within the two groups were quite similar to that of CIN2+, suggesting that most women with prevalent CIN2+ also developed CIN3+. Our results suggests that detection of LR-HPV types does not predict CIN3+ and therefore should be omitted from primary screening for cervical cancer. Master Thesis Northern Norway University of Tromsø: Munin Open Research Archive Norway |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Gynekologi og obstetrikk: 756 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Gynecology and obstetrics: 756 MED-3950 |
spellingShingle |
VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Gynekologi og obstetrikk: 756 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Gynecology and obstetrics: 756 MED-3950 Riibe, Marit Østlyngen Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992 |
topic_facet |
VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Gynekologi og obstetrikk: 756 VDP::Medical disciplines: 700::Clinical medical disciplines: 750::Gynecology and obstetrics: 756 MED-3950 |
description |
Background/objective: Long-term follow-up of patients with positive tests for Human Papilloma Viruses (HPV) is rarely studied. The study objective was to compare HPV status at baseline with the outcome of CIN3+ in the follow-up period of 28 years. Materials and methods: All women referred to the HPV outpatient clinic at the University Hospital of Northern Norway (UNN) in 1990-1992, having a HPV test performed during that time, were included in this retrospective cohort. An exposed cohort with positive high-risk (HR) HPV test was compared to a control cohort with negative HR-HPV test. Both cohorts were followed up to the last time-point of observation of 28 years. Results: The risk of CIN2+ among HPV positive and HPV negative women was 57.0% (127/223) and 17.4% (73/419), respectively (p<0.01). Among the 223 HR-HPV positive women, 102 (45.7%) developed CIN3+, while 44 (10.5%) out of 419 HPV negative women developed CIN3+ (p<0.01). The overall cumulative incidence of CIN3+ was 22.7%. Women with HPV33 had the highest incidence of CIN3+, but HPV16 provided the greatest long-term risk of CIN3+. The incidence of CIN3+ was similar for women with a negative HR-HPV test and women with a positive low-risk (LR) HPV test, including HPV 6 and 11. Conclusion and consequences: HPV status at baseline is predictive for women ́s subsequent risk of developing CIN3+. Women with a positive HR-HPV test in 1990-1992 had a significantly higher risk of CIN3+ during 28 years of follow-up compared to HR-HPV negative women. The cumulative incidence of CIN3+ within the two groups were quite similar to that of CIN2+, suggesting that most women with prevalent CIN2+ also developed CIN3+. Our results suggests that detection of LR-HPV types does not predict CIN3+ and therefore should be omitted from primary screening for cervical cancer. |
format |
Master Thesis |
author |
Riibe, Marit Østlyngen |
author_facet |
Riibe, Marit Østlyngen |
author_sort |
Riibe, Marit Østlyngen |
title |
Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992 |
title_short |
Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992 |
title_full |
Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992 |
title_fullStr |
Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992 |
title_full_unstemmed |
Risk of cervical intraepithelial neoplasia grade 3 or higher (CIN3+) among women with HPV-test in 1990-1992 |
title_sort |
risk of cervical intraepithelial neoplasia grade 3 or higher (cin3+) among women with hpv-test in 1990-1992 |
publisher |
UiT Norges arktiske universitet |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/26619 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_relation |
https://hdl.handle.net/10037/26619 |
op_rights |
openAccess Copyright 2020 The Author(s) |
_version_ |
1766145810969395200 |