Search Results - "Urinary Bladder Neoplasms"

Multi-DECT Image-based Interpretable Model Incorporating Habitat Radiomics and Vision Transformer Deep Learning for Preoperative Prediction of Muscle Invasion in Bladder Cancer.

Authors: Du C Wei W Hu M et al.

Source: Academic radiology [Acad Radiol] 2025 Dec; Vol. 32 (12), pp. 7204-7214. Date of Electronic Publication: 2025 Aug 30.

Publication Type: Journal Article

Journal Info: Publisher: Association Of University Radiologists Country of Publication: United States NLM ID: 9440159 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-4046 (Electronic) Linking ISSN: 10766332 NLM ISO Abbreviation: Acad Radiol Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/diagnostic imaging , Urinary Bladder Neoplasms*/surgery , Deep Learning* , Tomography, X-Ray Computed*/methods , Radiographic Image Interpretation, Computer-Assisted*/methods, Humans ; Male ; Female ; Retrospective Studies ; Neoplasm Invasiveness/diagnostic imaging ; Middle Aged ; Aged ; Radiomics

Impact of the preoperative modified 5-item frailty index on the efficacy of neoadjuvant chemotherapy in patients with muscle invasive bladder cancer.

Authors: Goto K Kohada Y Kobatake K et al.

Source: Urologic oncology [Urol Oncol] 2025 Dec; Vol. 43 (12), pp. 695.e11-695.e19. Date of Electronic Publication: 2025 Aug 21.

Publication Type: Journal Article

Journal Info: Publisher: Elsevier Country of Publication: United States NLM ID: 9805460 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2496 (Electronic) Linking ISSN: 10781439 NLM ISO Abbreviation: Urol Oncol Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/drug therapy , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/surgery , Urinary Bladder Neoplasms*/mortality , Neoadjuvant Therapy*/methods , Frailty*/diagnosis, Humans ; Female ; Male ; Retrospective Studies ; Aged ; Middle Aged ; Cystectomy ; Neoplasm Invasiveness ; Chemotherapy, Adjuvant ; Treatment Outcome ; Aged, 80 and over

Recurrence risk prediction for non-muscle-invasive bladder urothelial carcinoma using diffusion and clinicopathology features.

Authors: Zhang X Guo J Wang L et al.

Source: Abdominal radiology (New York) [Abdom Radiol (NY)] 2025 Dec; Vol. 50 (12), pp. 5903-5914. Date of Electronic Publication: 2025 May 28.

Publication Type: Journal Article

Journal Info: Publisher: Springer Country of Publication: United States NLM ID: 101674571 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2366-0058 (Electronic) NLM ISO Abbreviation: Abdom Radiol (NY) Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/diagnostic imaging , Urinary Bladder Neoplasms*/pathology , Neoplasm Recurrence, Local*/diagnostic imaging , Neoplasm Recurrence, Local*/pathology , Carcinoma, Transitional Cell*/pathology , Carcinoma, Transitional Cell*/diagnostic imaging , Diffusion Magnetic Resonance Imaging*/methods, Humans ; Male ; Female ; Retrospective Studies ; Aged ; Middle Aged ; Risk Assessment ; Neoplasm Invasiveness ; Prognosis ; Aged, 80 and over ; Predictive Value of Tests ; Adult

Effect of Continuity of Care on Cancer-Related Fatigue, Self-Care Ability and Fear of Recurrence in Patients with Intravesical Chemotherapy after Transurethral Resection of Bladder Tumors.

Authors: Huang Z Cai Y Zhong H et al.

Source: Archivos espanoles de urologia [Arch Esp Urol] 2025 Nov; Vol. 78 (9), pp. 1266-1276.

Publication Type: Journal Article

Journal Info: Publisher: Iniestares Country of Publication: Spain NLM ID: 0064757 Publication Model: Print Cited Medium: Print ISSN: 0004-0614 (Print) Linking ISSN: 00040614 NLM ISO Abbreviation: Arch Esp Urol Subsets: MEDLINE

MeSH Terms: Fatigue*/etiology , Urinary Bladder Neoplasms*/surgery , Urinary Bladder Neoplasms*/drug therapy , Urinary Bladder Neoplasms*/psychology , Urinary Bladder Neoplasms*/therapy , Self Care* , Neoplasm Recurrence, Local*/psychology , Fear* , Continuity of Patient Care* , Antineoplastic Agents*/administration & dosage, Humans ; Male ; Female ; Retrospective Studies ; Middle Aged ; Aged ; Administration, Intravesical ; Cystectomy/methods ; Transurethral Resection of Bladder

Impact of timing of computed tomography staging and patient factors on the detection of 'true' cN+ bladder cancer.

Authors: von Deimling M Furrer M Bianchi A et al.

Corporate Authors: von Deimling M Furrer M Bianchi A et al.

Source: BJU international [BJU Int] 2025 Nov; Vol. 136 (5), pp. 911-919. Date of Electronic Publication: 2025 Jul 09.

Publication Type: Journal Article; Multicenter Study

Journal Info: Publisher: Blackwell Science Country of Publication: England NLM ID: 100886721 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1464-410X (Electronic) Linking ISSN: 14644096 NLM ISO Abbreviation: BJU Int Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/surgery , Urinary Bladder Neoplasms*/diagnostic imaging , Tomography, X-Ray Computed*/methods , Lymph Nodes*/pathology , Lymph Nodes*/diagnostic imaging, Humans ; Male ; Female ; Neoplasm Staging/methods ; Aged ; Retrospective Studies ; Middle Aged ; Cystectomy/methods ; Lymphatic Metastasis ; Time Factors ; Lymph Node Excision ; Aged, 80 and over

Traditional and next-generation bacillus Calmette-Guérin based treatment strategies for bacillus Calmette-Guérin unresponsive non-muscle-invasive bladder cancer in the era of emerging therapies.

Authors: Artiles Medina A Subiela JD Pichler R et al.

Source: Current opinion in urology [Curr Opin Urol] 2025 Nov 01; Vol. 35 (6), pp. 609-619. Date of Electronic Publication: 2025 Jul 11.

Publication Type: Journal Article; Review

Journal Info: Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 9200621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1473-6586 (Electronic) Linking ISSN: 09630643 NLM ISO Abbreviation: Curr Opin Urol Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/drug therapy , Urinary Bladder Neoplasms*/therapy , Urinary Bladder Neoplasms*/immunology , Urinary Bladder Neoplasms*/mortality , BCG Vaccine*/therapeutic use , BCG Vaccine*/administration & dosage , Antineoplastic Combined Chemotherapy Protocols*/therapeutic use , Adjuvants, Immunologic*/therapeutic use , Adjuvants, Immunologic*/administration & dosage, Humans ; Administration, Intravesical ; Immunotherapy/methods ; Neoplasm Invasiveness ; Cystectomy ; Treatment Failure ; Drug Resistance, Neoplasm ; Non-Muscle Invasive Bladder Neoplasms

Urothelial carcinoma: Perioperative considerations from top to bottom.

Authors: Yip W Jaime-Casas S Kothari A et al.

Source: CA: a cancer journal for clinicians [CA Cancer J Clin] 2025 Nov-Dec; Vol. 75 (6), pp. 528-551. Date of Electronic Publication: 2025 Jun 06.

Publication Type: Journal Article; Review

Journal Info: Publisher: Wiley Country of Publication: United States NLM ID: 0370647 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1542-4863 (Electronic) Linking ISSN: 00079235 NLM ISO Abbreviation: CA Cancer J Clin Subsets: MEDLINE

MeSH Terms: Perioperative Care*/methods , Urinary Bladder Neoplasms*/therapy , Urinary Bladder Neoplasms*/diagnosis , Urinary Bladder Neoplasms*/surgery , Carcinoma, Transitional Cell*/therapy , Carcinoma, Transitional Cell*/diagnosis , Carcinoma, Transitional Cell*/surgery, Humans ; Cystectomy/methods ; Neoadjuvant Therapy ; Female ; Organ Sparing Treatments ; Chemotherapy, Adjuvant

Treatment strategies for cisplatin-ineligible metastatic bladder cancer: Emerging therapies and future perspectives.

Authors: Kim KH Phan DTT Ha HK et al.

Source: Investigative and clinical urology [Investig Clin Urol] 2025 Nov; Vol. 66 (6), pp. 471-481.

Publication Type: Journal Article; Review

Journal Info: Publisher: Korean Urological Association Country of Publication: Korea (South) NLM ID: 101674989 Publication Model: Print Cited Medium: Internet ISSN: 2466-054X (Electronic) Linking ISSN: 24660493 NLM ISO Abbreviation: Investig Clin Urol Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/drug therapy , Urinary Bladder Neoplasms*/pathology , Antineoplastic Combined Chemotherapy Protocols*/therapeutic use , Carcinoma, Transitional Cell*/drug therapy , Carcinoma, Transitional Cell*/secondary, Humans ; Cisplatin/therapeutic use ; Neoplasm Metastasis ; Antineoplastic Agents/therapeutic use ; Antibodies, Monoclonal, Humanized/therapeutic use

Management of nephrogenic adenoma in pediatric patients with multiple urological interventions.

Transliterated Title: Manejo del adenoma nefrogénico en el paciente pediátrico con múltiples intervenciones urológicas.

Authors: Pérez Costoya C Granell Suárez C Álvarez Muñoz V et al.

Source: Cirugia pediatrica : organo oficial de la Sociedad Espanola de Cirugia Pediatrica [Cir Pediatr] 2025 Oct 22; Vol. 38 (4), pp. 163-166. Date of Electronic Publication: 2025 Oct 22.

Publication Type: Case Reports; Journal Article

Journal Info: Publisher: Pat Ediciones Country of Publication: Spain NLM ID: 8900492 Publication Model: Electronic Cited Medium: Internet ISSN: 2445-2807 (Electronic) Linking ISSN: 02141221 NLM ISO Abbreviation: Cir Pediatr Subsets: MEDLINE

MeSH Terms: Adenoma*/surgery , Adenoma*/diagnosis , Adenoma*/pathology , Urinary Bladder Neoplasms*/surgery , Urinary Bladder Neoplasms*/diagnosis , Urinary Bladder Neoplasms*/pathology , Cystectomy*/methods, Humans ; Male ; Child ; Cystoscopy/methods ; Follow-Up Studies ; Diagnosis, Differential ; Biopsy

Second opinions and pathological review impact the clinical management of patients with muscle-invasive bladder cancer.

Authors: Kawahara T Nitta S Shiga M et al.

Source: World journal of urology [World J Urol] 2025 Oct 09; Vol. 43 (1), pp. 602. Date of Electronic Publication: 2025 Oct 09.

Publication Type: Journal Article

Journal Info: Publisher: Springer International Country of Publication: Germany NLM ID: 8307716 Publication Model: Electronic Cited Medium: Internet ISSN: 1433-8726 (Electronic) Linking ISSN: 07244983 NLM ISO Abbreviation: World J Urol Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/therapy , Referral and Consultation*, Humans ; Retrospective Studies ; Neoplasm Invasiveness ; Male ; Aged ; Female ; Middle Aged ; Aged, 80 and over ; Neoplasm Staging ; Cystectomy

An RMST-based analysis of systemic therapy in muscle-invasive bladder cancer.

Authors: Venkatesh A Ishiyama Y Rodriguez Rosales RD et al.

Source: Urologic oncology [Urol Oncol] 2025 Oct; Vol. 43 (10), pp. 596.e15-596.e21. Date of Electronic Publication: 2025 Aug 05.

Publication Type: Journal Article

Journal Info: Publisher: Elsevier Country of Publication: United States NLM ID: 9805460 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2496 (Electronic) Linking ISSN: 10781439 NLM ISO Abbreviation: Urol Oncol Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/drug therapy , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/mortality, Humans ; Neoplasm Invasiveness ; Clinical Trials, Phase III as Topic ; Antibodies, Monoclonal, Humanized/therapeutic use ; Survival Analysis

Comparative Assessment of Chemotherapy Followed by Consolidative Radical Cystectomy Versus Chemoradiation for Clinically Node-Positive Urothelial Carcinoma of the Bladder.

Authors: Ślusarczyk A Scilipoti P Contieri R et al.

Source: Clinical genitourinary cancer [Clin Genitourin Cancer] 2025 Oct; Vol. 23 (5), pp. 102399. Date of Electronic Publication: 2025 Jul 05.

Publication Type: Journal Article; Comparative Study

Journal Info: Publisher: Elsevier Country of Publication: United States NLM ID: 101260955 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1938-0682 (Electronic) Linking ISSN: 15587673 NLM ISO Abbreviation: Clin Genitourin Cancer Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/therapy , Urinary Bladder Neoplasms*/mortality , Urinary Bladder Neoplasms*/pathology , Cystectomy*/methods , Chemoradiotherapy*/methods , Carcinoma, Transitional Cell*/therapy , Carcinoma, Transitional Cell*/mortality , Carcinoma, Transitional Cell*/pathology, Humans ; Male ; Female ; Aged ; Middle Aged ; SEER Program ; Lymphatic Metastasis ; Retrospective Studies ; Lymph Nodes/pathology ; Prognosis ; Treatment Outcome

Recent Advances and Future Directions in Bladder Preservation Therapy for Muscle-Invasive Bladder Cancer.

Authors: Kimura T Inoue S Sano T et al.

Source: International journal of urology : official journal of the Japanese Urological Association [Int J Urol] 2025 Oct; Vol. 32 (10), pp. 1334-1341. Date of Electronic Publication: 2025 Jul 01.

Publication Type: Journal Article; Review

Journal Info: Publisher: Blackwell Science Asia Country of Publication: Australia NLM ID: 9440237 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1442-2042 (Electronic) Linking ISSN: 09198172 NLM ISO Abbreviation: Int J Urol Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/therapy , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/mortality , Organ Sparing Treatments*/methods , Organ Sparing Treatments*/trends, Humans ; Cystectomy/methods ; Neoplasm Invasiveness ; Quality of Life ; Urinary Bladder/pathology ; Urinary Bladder/surgery ; Urinary Bladder/radiation effects ; Combined Modality Therapy/trends ; Combined Modality Therapy/methods ; Treatment Outcome ; Immune Checkpoint Inhibitors/therapeutic use

Survival improvements and disparities in metastatic prostate adenocarcinoma, clear cell renal cell carcinoma, and urothelial carcinoma of bladder.

Authors: Tang Y Han Z Yi X et al.

Source: International journal of cancer [Int J Cancer] 2025 Dec 15; Vol. 157 (12), pp. 2485-2494. Date of Electronic Publication: 2025 Aug 02.

Publication Type: Journal Article

Journal Info: Publisher: Wiley-Liss Country of Publication: United States NLM ID: 0042124 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-0215 (Electronic) Linking ISSN: 00207136 NLM ISO Abbreviation: Int J Cancer Subsets: MEDLINE

MeSH Terms: Prostatic Neoplasms*/mortality , Prostatic Neoplasms*/pathology , Prostatic Neoplasms*/therapy , Urinary Bladder Neoplasms*/mortality , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/therapy , Carcinoma, Renal Cell*/mortality , Carcinoma, Renal Cell*/pathology , Carcinoma, Renal Cell*/therapy , Kidney Neoplasms*/mortality , Kidney Neoplasms*/pathology , Carcinoma, Transitional Cell*/mortality , Carcinoma, Transitional Cell*/pathology , Adenocarcinoma*/mortality , Healthcare Disparities*/statistics & numerical data, Humans ; Male ; SEER Program/statistics & numerical data ; Aged ; Middle Aged ; Female ; Kaplan-Meier Estimate ; United States/epidemiology ; Survival Rate

Complications and oncologic outcome in bladder cancer patients receiving radical cystectomy after intravesical instillation treatment.

Authors: Frey LJ Banasiewicz KE Ruckes C et al.

Source: PloS one [PLoS One] 2025 Dec 05; Vol. 20 (12), pp. e0337644. Date of Electronic Publication: 2025 Dec 05 (Print Publication: 2025).

Publication Type: Journal Article

Journal Info: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/surgery , Urinary Bladder Neoplasms*/drug therapy , Urinary Bladder Neoplasms*/mortality , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/therapy , Cystectomy*/adverse effects , Mitomycin*/administration & dosage , Mitomycin*/therapeutic use , Mitomycin*/adverse effects , BCG Vaccine*/administration & dosage , BCG Vaccine*/therapeutic use , BCG Vaccine*/adverse effects , Postoperative Complications*/etiology , Postoperative Complications*/epidemiology, Humans ; Male ; Female ; Aged ; Administration, Intravesical ; Middle Aged ; Treatment Outcome ; Aged, 80 and over ; Retrospective Studies ; Kaplan-Meier Estimate

Virus-induced APOBEC3 transmutagenesis in bladder cancer initiation.

Authors: Hatton GH James SR Mason AS et al.

Source: Science advances [Sci Adv] 2025 Dec 05; Vol. 11 (49), pp. eaea6124. Date of Electronic Publication: 2025 Dec 03.

Publication Type: Journal Article; Review

Journal Info: Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 101653440 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2375-2548 (Electronic) Linking ISSN: 23752548 NLM ISO Abbreviation: Sci Adv Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/genetics , Urinary Bladder Neoplasms*/virology , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/metabolism , Urinary Bladder Neoplasms*/etiology , Mutation* , BK Virus*/physiology , Polyomavirus Infections*/virology , Polyomavirus Infections*/complications , Polyomavirus Infections*/genetics , Cytidine Deaminase*/genetics , Cytidine Deaminase*/metabolism , Tumor Virus Infections*/virology, Humans ; APOBEC Deaminases/metabolism ; Urothelium/virology ; Urothelium/pathology ; Urothelium/metabolism ; Carcinogenesis/genetics

NEAT1 is a therapeutic target for reversing T-cell exhaustion in bladder cancer.

Authors: Li K Niu L Zhang X et al.

Source: Journal for immunotherapy of cancer [J Immunother Cancer] 2025 Dec 03; Vol. 13 (12). Date of Electronic Publication: 2025 Dec 03.

Publication Type: Journal Article

Journal Info: Publisher: BMJ Publishing Group Ltd Country of Publication: England NLM ID: 101620585 Publication Model: Electronic Cited Medium: Internet ISSN: 2051-1426 (Electronic) Linking ISSN: 20511426 NLM ISO Abbreviation: J Immunother Cancer Subsets: MEDLINE

MeSH Terms: Urinary Bladder Neoplasms*/immunology , Urinary Bladder Neoplasms*/genetics , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/drug therapy , RNA, Long Noncoding*/metabolism , RNA, Long Noncoding*/genetics , CD8-Positive T-Lymphocytes*/immunology, Animals ; Humans ; Mice ; Tumor Microenvironment/immunology ; Cell Line, Tumor ; T-Cell Exhaustion

Microbial Product Cocktails for Personalized Cancer Immunotherapy.

Authors: Yan Y Yang S Mach KE et al.

Source: Nature communications [Nat Commun] 2025 Dec 02; Vol. 16 (1), pp. 10625. Date of Electronic Publication: 2025 Dec 02.

Publication Type: Journal Article

Journal Info: Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101528555 Publication Model: Electronic Cited Medium: Internet ISSN: 2041-1723 (Electronic) Linking ISSN: 20411723 NLM ISO Abbreviation: Nat Commun Subsets: MEDLINE

MeSH Terms: Immunotherapy*/methods , Urinary Bladder Neoplasms*/therapy , Urinary Bladder Neoplasms*/immunology , Precision Medicine*/methods, Animals ; Humans ; Mice ; Female ; Cell Line, Tumor

Newly Designed Optical Coherence Tomography Catheter for Optimizing Bladder Cancer Diagnosis and Treatment: Protocol for a Feasibility Study.

Authors: Remmelink MJ Nieuwenhuijzen JA de Bruin DM et al.

Source: JMIR research protocols [JMIR Res Protoc] 2025 Dec 02; Vol. 14, pp. e76644. Date of Electronic Publication: 2025 Dec 02.

Publication Type: Journal Article

Journal Info: Publisher: JMIR Publications Country of Publication: Canada NLM ID: 101599504 Publication Model: Electronic Cited Medium: Internet ISSN: 1929-0748 (Electronic) Linking ISSN: 19290748 NLM ISO Abbreviation: JMIR Res Protoc Subsets: MEDLINE

MeSH Terms: Tomography, Optical Coherence*/instrumentation , Tomography, Optical Coherence*/methods , Urinary Bladder Neoplasms*/diagnostic imaging , Urinary Bladder Neoplasms*/diagnosis , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/surgery , Urinary Bladder Neoplasms*/therapy , Catheters*, Humans ; Feasibility Studies ; Female ; Cystoscopy/methods ; Male ; Urinary Bladder/diagnostic imaging ; Urinary Bladder/pathology ; Neoplasm Staging

A Clinically Practical Nomogram for Predicting Survival in Elderly Patients (≥ 65 Years) With Bladder Urothelial Carcinoma: A Study Based on SEER Database and External Validation.

Authors: Wei J Wei C Chen J et al.

Source: Cancer reports (Hoboken, N.J.) [Cancer Rep (Hoboken)] 2025 Dec; Vol. 8 (12), pp. e70418.

Publication Type: Journal Article; Validation Study

Journal Info: Publisher: John Wiley & Sons, Inc Country of Publication: United States NLM ID: 101747728 Publication Model: Print Cited Medium: Internet ISSN: 2573-8348 (Electronic) Linking ISSN: 25738348 NLM ISO Abbreviation: Cancer Rep (Hoboken) Subsets: MEDLINE

MeSH Terms: Nomograms* , Urinary Bladder Neoplasms*/mortality , Urinary Bladder Neoplasms*/pathology , Urinary Bladder Neoplasms*/therapy , Carcinoma, Transitional Cell*/mortality , Carcinoma, Transitional Cell*/pathology , Carcinoma, Transitional Cell*/therapy, Humans ; Male ; SEER Program/statistics & numerical data ; Female ; Aged ; Prognosis ; Aged, 80 and over ; Survival Rate ; Risk Assessment/methods ; China/epidemiology