PMID- 11683458
OWN - NLM
STAT- MEDLINE
DCOM- 20020315
LR  - 20191105
IS  - 0105-0397 (Print)
IS  - 0105-0397 (Linking)
VI  - 30
IP  - 3
DP  - 2001
TI  - Epidemiology of permanent childhood hearing impairment in the Tyrol, 1980-94.
PG  - 197-202
AB  - In recent years the need for reliable data on permanent childhood hearing 
      impairment (PCHI) has increased, owing to both scientific interest and practical 
      aspects such as implementation of neonatal hearing screening. In order to obtain 
      data about the epidemiology of PCHI in the Austrian state of Tyrol, the medical 
      records of all hearing-impaired Tyrolean children born between 1980 and 1994 were 
      researched. A total of 165 children with at least moderate hearing impairment in 
      the better ear were registered, of whom 52.7% were found to be moderately 
      hearing-impaired, 24.2% severely hearing-impaired and 23.0% profoundly 
      hearing-impaired. Sensorineural hearing loss was observed in 87.3%, conductive 
      hearing loss in 6.7% and mixed hearing loss in 6.1%. As for aetiology, 
      non-syndromic hereditary hearing loss was diagnosed in 22% of the children and 
      syndromic hearing loss in 8%. Congenital malformation of the ear was found in 3%. 
      In 19% of the children, perinatal risk factors were seen, and in 10% a pre-, 
      peri- or postnatal infection had occurred. Aetiology remained unknown in 36% of 
      the children. The prevalence rate of newborn hearing impairment was 1.27/1000 
      newborns. The results are considered to fit well to the PCHI findings reported 
      from other European regions.
FAU - Nekahm, D
AU  - Nekahm D
AD  - Department of Hearing, Speech and Voice Disorders, University of Innsbruck, 
      Austria. doris.nekahm@uibk.ac.at
FAU - Weichbold, V
AU  - Weichbold V
FAU - Welzl-Muller, K
AU  - Welzl-Muller K
LA  - eng
PT  - Journal Article
PL  - Denmark
TA  - Scand Audiol
JT  - Scandinavian audiology
JID - 0342230
SB  - IM
MH  - Austria/epidemiology
MH  - Child
MH  - Female
MH  - Hearing Disorders/*epidemiology/etiology
MH  - Humans
MH  - Male
MH  - Severity of Illness Index
EDAT- 2001/10/31 10:00
MHDA- 2002/03/16 10:01
CRDT- 2001/10/31 10:00
PHST- 2001/10/31 10:00 [pubmed]
PHST- 2002/03/16 10:01 [medline]
PHST- 2001/10/31 10:00 [entrez]
AID - 10.1080/010503901316914575 [doi]
PST - ppublish
SO  - Scand Audiol. 2001;30(3):197-202. doi: 10.1080/010503901316914575.