Trends in otitis media surgery: a decrease in adenoidectomy.
OBJECTIVE
Large variability in adenoidectomies and tympanostomy tube insertions between Norway and Finland has been suggested, but not yet confirmed. Objective is to compare trends in paediatric adenoidectomies and tympanostomy tube insertions for Norway and Finland from 1999 to 2005.


METHODS
National Finnish and Norwegian databases (STAKES and NPR) provided information on children between 0 and 7 years operated in the years 1999-2005. Surgical rates were viewed in the light of child density, age and gender, and compared bi-nationally.


RESULTS
Adenoidectomies were more common in Finland throughout the study period. Adenoidectomies in both countries decreased markedly from 1999 to 2005. The Finnish adenoidectomy rates were reduced from 212 to 133 per 10,000 children, equivalent Norwegian figures were 84 and 44 per 10,000 children. Tympanostomy tube insertions increased from 97 to 147 per 10,000 children in Finland in the same study period. In Norway the rates were more stable, 119 and 123 per 10,000 in 1999 and 2005, respectively. Peak-age for otitis media surgery was the second year of life in Finland, sixth in Norway. Boys were more frequently operated on in both countries.


CONCLUSIONS
Our study confirmed differences in the approach to otitis media surgery and revealed a decreasing trend in adenoidectomies in both countries. Similar data from other countries is needed to confirm the latter.
Haapkylä
Johanna
J
Department of Otorhinolaryngology, Helsinki University Central Hospital, PL 220, 00029 HUS, Finland. johanna.haapkyla@Helsinki.fi
Karevold
Gunnhild
G
Kvaerner
Kari Jorunn
KJ
Pitkäranta
Anne
A
D000233:Adenoidectomy / Q000706:statistics & numerical data / Q000639:trends*; D002648:Child; D002675:Child, Preschool; D005260:Female; D005387:Finland / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008876:Middle Ear Ventilation / Q000706:statistics & numerical data / Q000639:trends*; D009664:Norway / Q000453:epidemiology; D010033:Otitis Media / Q000601:surgery*; D012042:Registries