Acoustics and psychosocial environment in intensive coronary care.
BACKGROUND
Stress, strain, and fatigue at the workplace have previously not been studied in relation to acoustic conditions.


OBJECTIVE
To examine the influence of different acoustic conditions on the work environment and the staff in a coronary critical care unit (CCU).


METHODS
Psychosocial work environment data from start and end of each individual shift were obtained from three shifts (morning, afternoon, and night) for a one-week baseline period and for two four-week periods during which either sound reflecting or sound absorbing tiles were installed.


RESULTS
Reverberation times and speech intelligibility improved during the study period when the ceiling tiles were changed from sound reflecting tiles to sound absorbing ones of identical appearance. Improved acoustics positively affected the work environment; the afternoon shift staff experienced significantly lower work demands and reported less pressure and strain.


CONCLUSIONS
Important gains in the psychosocial work environment of healthcare can be achieved by improving room acoustics. The study points to the importance of further research on possible effects of acoustics in healthcare on staff turnover, quality of patient care, and medical errors.
Blomkvist
V
V
National Institute for Psychosocial Factors and Health, Stockholm, Sweden. vanja.blomkvist@pubcare.uu.se
Eriksen
C A
CA
Theorell
T
T
Ulrich
R
R
Rasmanis
G
G
D000162:Acoustics; D000328:Adult; D000368:Aged; D003325:Coronary Care Units; D005260:Female; D006302:Health Services Research; D006749:Hospital Design and Construction; D006801:Humans; D008297:Male; D008875:Middle Aged; D009623:Noise, Occupational / Q000009:adverse effects; D009741:Nursing Staff, Hospital / Q000523:psychology*; D009784:Occupational Diseases / Q000209:etiology / Q000517:prevention & control*; D016272:Occupational Health; D025341:Principal Component Analysis; D013065:Speech Intelligibility; D013315:Stress, Psychological / Q000209:etiology / Q000517:prevention & control*; D013548:Sweden
J Adv Nurs. 2000 Mar;31(3):520-8
10718870
Int J Qual Health Care. 1999 Aug;11(4):345-51
10501605
Intensive Crit Care Nurs. 2001 Aug;17(4):228-36
11868731
Hosp Health Netw. 2002 Mar;76(3):48-52, 54, 2
11917778
Crit Care Med. 2003 Jan;31(1):113-9
12545003
Crit Care Med. 1977 Nov-Dec;5(6):275-6
590016
Biol Psychol. 1978 Jan;6(1):51-9
623858
Ergonomics. 1979 Sep;22(9):1073-81
540654
Science. 1984 Apr 27;224(4647):420-1
6143402
Res Nurs Health. 1984 Mar;7(1):35-42
6565299
Res Nurs Health. 1985 Sep;8(3):283-91
3852363
Heart Lung. 1988 Sep;17(5):567-74
3417467
Crit Care Nurs Q. 1992 Aug;15(2):75-90
1628246
Br J Clin Pract. 1992 Summer;46(2):88-91
1457316
J Health Care Inter Des. 1991;3:97-109
10123973
Res Nurs Health. 1993 Dec;16(6):415-21
8248568
Sleep. 1994 Apr;17(3):236-41
7939123
Arch Environ Health. 1995 May-Jun;50(3):247-51
7618959
N Engl J Med. 1995 Sep 14;333(11):735-40
7637767
Psychother Psychosom. 1996;65(3):137-44
8784944
Intensive Crit Care Nurs. 1996 Aug;12(4):226-30
8932018
Sleep. 2001 May 1;24(3):289-92
11322711