Sara Nordqvist Kleppe

Mental disorders and socioeconomic outcomes in women with cervical cancer, and their children and co-parents

Abstract Background Cervical cancer often affects women who are in the middle of life and may carry substantial mental and socioeconomic impact also on families. We performed a generation-spanning study to elucidate this burden. Methods We used nationwide registers during 1991-2018 in Sweden to perform 2 matched cohort studies based on a source population of more than 5 million women. The individual sub-study included 6060 cases of cervical cancer diagnosed during 2006-2018 and 5 population comparators individually matched to each case by age, birth year, and region (n = 30 300). The family sub-study included 9332 cases of cervical cancer diagnosed during 1991-2016 and 45 674 matched population comparators and all their children and co-parents. Results We found an increased risk for mental disorders in cases compared with comparators, particularly during the first 2 years postdiagnosis (HR = 3.74, 95% CI = 3.45 to 4.06). Socioeconomic status changed negatively in cases after their diagnosis: a decreased income and increased need for financial aid appeared within 2 years, whereas unemployment escalated from 2 years after cancer diagnosis. We further found an increased risk of mental disorders in both children and co-parents of the cases, compared with the children and co-parents of the comparators. Furthermore, we observed negative socioeconomic trajectories in the co-parents and lower educational attainment in the children of the cases, especially if the case had died. Conclusions Women with cervical cancer, and their close family members, display increased risk of negative mental health and socioeconomic outcomes after diagnosis. The lower educational attainment in children appears particularly worrying.

Population-Based Age-Period-Cohort Analysis of Declining Human Papillomavirus Prevalence

Abstract Background Most countries in the world have launched human papillomavirus (HPV) vaccination programs, and declining HPV prevalences are reported. We aimed to disentangle the influences of calendar time, birth cohort, and age by analyzing HPV prevalences in the population-based cervical screening program using age-period-cohort modeling. Methods All 813 882 primary HPV-based cervical screening tests from women aged 23–64 years between 2014 and 2023 in the capital region of Sweden were identified in the Swedish National Cervical Screening Registry. The odds ratio (OR) of HPV-16/18 infection was estimated comparing birth cohorts to the unvaccinated 1984-born using an age-period-cohort model. The impact of changing HPV prevalences on the number needed to screen (NNS) to detect and prevent 1 cervical cancer case was calculated. Results HPV vaccination coverage was 82%–83% among women born in 1999–2000. Before 2019, the HPV-16/18 prevalence was highest among the youngest women. During 2020–2023 the prevalence consistently decreased among the birth cohorts offered organized school-based vaccination. There was a 98% decline in HPV-16 prevalence (OR, 0.02 [95% confidence interval {CI}, .01–.04]) and a 99% decline in HPV-18 prevalence (OR, 0.01 [95% CI, .00–.04]) among the 2000-born compared to the 1984-born. The declining HPV-16/18 prevalences resulted in major increases in the NNS to detect and to prevent 1 case of cervical cancer. Conclusions The declines of HPV-16/18 were considerably larger than the vaccination coverage, suggesting herd immunity. The changing epidemiology of HPV types impacts screening needs, necessitating updated screening programs.

Sequencing detects human papillomavirus in some apparently HPV-negative invasive cervical cancers

Human Papillomavirus Infection Determines Prognosis in Cervical Cancer

PURPOSE Detection of human papillomavirus (HPV) by polymerase chain reaction in invasive cervical cancer is strongly associated with prognosis but previous studies have not considered sequencing efforts. We aimed to assess the association when also including comprehensive analysis of HPV infection by deep sequencing and a longer follow-up period. MATERIALS AND METHODS We subjected all 392 of 2,845 invasive cervical cancer cases that were polymerase chain reaction–negative for HPV to RNA sequencing on the NovaSeq 6000 platform (Illumina) and identified an additional 169 cases as HPV-positive. We followed all women from date of diagnosis to December 31, 2016, emigration, or death, whichever occurred first. The main outcome was all-cause mortality by December 31, 2016. We calculated 5-year cumulative relative survival ratios compared with the female general population and used Poisson regression to estimate excess hazard ratios of all-cause mortality by infection with any of the 13 most oncogenic (high-risk [hr]) HPV types in the tumor. All models were adjusted for age, time since diagnosis, stage, histology, and education level. RESULTS The 5-year cumulative relative survival ratio was 0.45 (95% CI, 0.39 to 0.51) in the hrHPV-negative group, and 0.74 (95% CI, 0.72 to 0.75) in the hrHPV-positive group. This translated to a statistically significantly 43% lower excess mortality in the hrHPV-positive group compared with the hrHPV-negative (corresponding to an excess hazard ratio 0.57; 95% CI, 0.48 to 0.69). There was no association between HPV risk group, clade, or number of HPV infections and prognosis. CONCLUSION hrHPV status is a strong determinant of cervical cancer prognosis over 15 years after diagnosis, above and beyond other established factors.