Aug 2026· Frontiers in Oncology· 0 citations· 18 references
TL;DR
Divergent trends between incidence and mortality likely reflect reduced detection during the pandemic rather than true changes in disease burden, and highlight the importance of maintaining continuity of cancer screening and diagnostic services during health-system disruptions.
Abstract
Cervical cancer remains a major public health concern in Mongolia, where screening coverage is estimated at approximately 38%, well below recommended levels, and access to timely diagnosis varies. This study examined temporal trends in incidence and mortality and assessed the impact of COVID-19–related disruptions on cancer detection.
A nationwide population-based study was conducted using data from Mongolia’s national health information system (H-Info). All cervical cancer cases (ICD-10: C53.0-C53.9) and related deaths from 2014 to 2024 were included. Age-standardized incidence (ASIR) and mortality rates (ASMR) were calculated using the WHO world standard population as reference. Temporal trends were analyzed using log-linear and segmented regression models. The mortality-to-incidence ratio (MIR) was used as an ecological indicator of population-level cancer outcomes.
A total of 3,990 cases and 1,370 deaths were identified. Incidence increased between 2014 and 2016, declined thereafter, and dropped sharply during 2020–2022 (APC −29.4%), before rebounding in 2023–2024. In contrast, mortality declined gradually over the study period. MIR increased during the pandemic and declined following service recovery.
Cervical cancer incidence in Mongolia is highly sensitive to disruptions in screening and diagnostic services. Divergent trends between incidence and mortality likely reflect reduced detection during the pandemic rather than true changes in disease burden. These findings highlight the importance of maintaining continuity of cancer screening and diagnostic services during health-system disruptions.
The trends revealed a significant increase in incidence across all macro-regions, particularly in the North and South regions, whereas mortality rates remained stable, whereas mortality rates remained stable in the North and South regions.
Cristiane Maria da Costa-Silva, Higor Andrade de Oliveira Gonçalves, Ana Luísa Tavares de Oliveira et al.· Cancer Epidemiology· 0 citations
The study revealed both advances and persistent gaps in oral cancer care in Ceará, underscoring the need for a specific observatory to improve monitoring and ensure comprehensive oncological care.
Jennifer Vianna Barbosa, Weslley Nilson Oliveira de Sousa, Janderson Fernando da Silva et al.· Revista Brasileira de Cancer...· 0 citations
Cancer mortality in Alagoas is increasing steadily, characterized by premature deaths, geographic concentration, and care displacement, and decentralizing the oncology network, expanding screening for preventable tumors, and strengthening home palliative care are priority actions to reduce mortality.
Marianna Victória, C. Rocha, Adriana Martins da Conceição et al.· 0 citations
BACKGROUND
Cancer incidence and mortality vary substantially across regions, whereas direct population-based survival data remain limited in many settings, including Iran. The mortality-to-incidence ratio (MIR) is increasingly used as a population-level proxy for cancer survival and health system performance where survival registries are incomplete. This study examined long-term subnational trends and geographic disparities in MIR for six major cancers across 31 Iranian provinces from 1990 to 2019.
METHODS
This ecological study used Global Burden of Disease 2019 estimates. Age-standardized incidence rates (ASIRs) and mortality rates (ASMRs) were extracted for prostate, stomach, and colorectal cancers in men, and breast, stomach, and colorectal cancers in women. MIR was calculated annually as ASMR divided by ASIR for each province, cancer type, sex, and year. Joinpoint regression estimated annual percent change (APC) and average annual percent change (AAPC) with 95% confidence intervals.
RESULTS
ASIRs increased for prostate and colorectal cancers in men and for breast and colorectal cancers in women, while stomach cancer incidence declined modestly in both sexes. MIR declined significantly for all cancers studied. The greatest reductions were observed for prostate cancer in men (AAPC = -1.77%, p < 0.001) and breast cancer in women (AAPC = -1.54%, p < 0.001). Colorectal cancer MIR also declined in men (AAPC = -1.02%, p < 0.001) and women (AAPC = -0.56%, p < 0.001). Stomach cancer showed smaller reductions in men (AAPC = -0.32%, p < 0.001) and women (AAPC = -0.30%, p < 0.001), with high MIRs across most provinces. Sistan and Baluchistan remained a high-MIR province for several cancers.
CONCLUSIONS
MIR-based cancer outcomes improved in Iran, but marked cancer-specific and provincial disparities remained. High MIRs for stomach cancer and in underserved provinces highlight the need for targeted early diagnosis, timely treatment, and equitable cancer control strategies.
Shadi Askari, Rasoul Gholamiveis, R. Safari-Faramani· Cancer Epidemiology· 0 citations
RCC mortality in Brazil demonstrates age- and region-specific heterogeneity at the population level, and surgical data reveal persistent disparities in access to oncological surgical treatment within the public sector.
Pedro Victor Miranda De Oliveira, Heveline R. M. Roesch, N. Avilez et al.· ONCOLOGIE· 0 citations
Trends in breast cancer incidence in Ethiopia are analyzed and segmented analysis indicates non-significant over all trends with observed temporal fluctuations identified in segmented analyses, with a joinpoint detected in 2016 for females and 2020 for males.
Awgichew Kifle, A. Addissie, Mathewos Assefa et al.· BMC Cancer· 0 citations
