Inflammatory bowel disease epidemiology in São Paulo State, Brazil
Open accessAbstract
Purpose: This study aimed to estimate the incidence and prevalence of inflammatory bowel disease (IBD) in São Paulo, Brazil, for 2012– 2015. Patients and methods: This observational, descriptive, and cross-sectional study included 22,638 IBD patients out of 43,046,555 inhabitants, who had initiated their treatment through the Governmental Program of the Brazilian Unified National Health System between the years of 2012 and 2015. The onset of the disease (used to determine incidence) was established as the date of the patient’s initial registration in the Governmental Program with a diagnosis for Crohn’s disease (CD) or ulcerative colitis (UC). Every patient registered in the system as of December 2015 was included in determining the prevalence. The demographic and clinical data, such as age and sex, were collected for each patient. Statistical analysis included mean and SD, absolute and percentage frequencies, and Pearson’s chi-squared test ( X ²). The incidence and prevalence rates were calculated based on the estimated annual population of the State of São Paulo. Results: The study population consisted of 10,451 (46.16%) CD patients and 12,187 (53.84%) UC patients. The mean age was 42.66 (SD± 16.2) years for the CD group and 47.87 (SD± 16.6) years for the UC group. There was a predominance of females corresponding to 59.70% of the study population (female:male =1.48:1.00; P < 0.0001). The incidence of IBD was 13.30 new cases/100,000 inhabitants per year, while the overall prevalence was 52.6 cases/100,000 inhabitants. Conclusion: This population-based study demonstrated a stability in IBD incidence rates and an increase in IBD prevalence rates in São Paulo state between 2012 and 2015. The IBD incidence and prevalence rates were comparable to European countries, with a higher occurrence in the female participants. Keywords: inflammatory bowel disease, Crohn’s disease, ulcerative colitis, epidemiology, incidence, prevalence Corrigendum for this paper has been published
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In São Paulo, Brazil, IBD incidence was 1.0 per 100,000 in 1986-1990, peaked at 13.3 per 100,000 in 2012-2015, and prevalence remained low at 22.6 per 100,000 in 2001-2005.
“in the state of São Paulo, Brazil, the incidence of IBD was 1.0 per 100,000 during the period 1986–1990 (ref.50) and peaked at 13.3 per 100,000 during the period 2012–2015, but the prevalence remained low at 22.6 per 100,000 (2001–2005)51.”
From The four epidemiological stages in the global evolution of inflammatory bowel disease (2021) · cites this paper as [51]
Prevalence remains low in most regions of Latin America.
“Similarly, prevalence remains low in most regions in Latin America.”
From The four epidemiological stages in the global evolution of inflammatory bowel disease (2021) · cites this paper as [51]
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- Authors
- Galhardi Gasparini, R., Sassaki, L. Y., & Saad-Hossne, R.
- Affiliations
- Universidade Estadual Paulista (Unesp) (BR)
- Venue
- Clinical and Experimental Gastroenterology
- Publisher
- Informa UK Limited
- Published
- 2018-10
- Volume
- Volume 11
- Pages
- 423-429
- ISSN
- 1178-7023 (ISSN-L)
- PMC
- PMC6214600
- OpenAlex
- W2898624511
- Cited by
- 50
- References
- 20
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 7 · 2023: 7 · 2022: 12 · 2021: 7 · 2020: 8 · 2019: 3
- FWCI
- 2.75
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Clinical and Experimental Gastroenterology (publishedVersion, cc-by-nc)
- Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- UNESP Institutional Repository (São Paulo State University) (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
- Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
- Health Sciences › Medicine › Epidemiology › Microscopic Colitis
- Keywords
- inflammatory bowel disease, Crohn's disease, ulcerative colitis, incidence, prevalence, São Paulo state, sex differences, population-based epidemiology
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