The complete picture of changing pediatric inflammatory bowel disease incidence in Spain in 25 years (1985-2009): the EXPERIENCE registry.
OBJECTIVE
A growing incidence of pediatric IBD (PIBD) in southern Europe has been recently reported. The SPIRIT registry (1996-2009) confirmed these tendencies in Spain. Our aim is to obtain data from 1985 to 1995 and describe the complete picture of PIBD presentation changes in Spain in the last 25years.


METHODS
A retrospective survey of incident PIBD in the period 1985-1995 was performed. Patients' data were obtained from the hospitals' databases and compared with the published data from the 1996 to 2009 period. Seventy-eight IBD reference centers took part in this survey.


RESULTS
Data from 495 patients were obtained: 278 CD (56.2%), 198 UC (40%), and 19 IBDU (3.8%); 51.7% were female, with higher predominance both in UC (58.6%) and in IBDU (57.9%), but not in CD (46.4%). Median (IQR) age at diagnosis was 12.9 (10.0-15.7) years, with significant differences among IBD subtypes: CD: 13.1 (10.8-16.0) vs UC: 12.4 (9.4-15.1) vs IBDU: 7.5 (3.0-13.0) (p≤0.001). These results are significantly different to the ones in the SPIRIT registry, with a higher proportion of IBDU, younger age and male predominance. The data from both periods taken together give a complete picture of a 25-year period. An annual increase of incident patients was observed, with a ten-fold increase over this period.


CONCLUSIONS
These data extend the epidemiological trends to a full 25-year period (1985-2009). PIBD incidence in Spain has experienced a sixteen-fold increase. The IBD subtype, localization of the affected segment, age- and sex distribution observed are in accordance with our previously published ones of 1996-2009.
Unidad para el Cuidado Integral de la Enfermedad Inflamatoria Intestinal Pediátrica, Sección de Gastroenterología, Hepatología y Nutrición Pediátrica, Hospital Sant Joan de Déu, Barcelona, Spain. Electronic address: javiermartin@hsjdbcn.org.
J
J
Martín-de-Carpi
Hospital Virgen del Rocío, Sevilla, Spain.
A
A
Rodríguez
Hospital La Paz, Madrid, Spain.
E
E
Ramos
Hospital Central de Asturias, Oviedo, Spain.
S
S
Jiménez
Hospital Niño Jesús, Madrid, Spain.
M J
MJ
Martínez-Gómez
Hospital Doce de Octubre, Madrid, Spain.
E
E
Medina
Hospital Materno-Infantil, Málaga, Spain.
V M
VM
Navas-López
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000453:epidemiology; D003424:Crohn Disease / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D015212:Inflammatory Bowel Diseases / Q000453:epidemiology*; D008297:Male; D012042:Registries; D012189:Retrospective Studies; D012737:Sex Factors; D013030:Spain / Q000453:epidemiology
Crohn's disease; EXPERIENCE registry; IBD unclassified; Incidence; Pediatric inflammatory bowel disease; SPIRIT registry; Ulcerative colitis