Health locus of control and use of conventional and alternative care: a cohort study.
BACKGROUND
Health locus of control influences health-related behaviour, but its association with healthcare use is unclear.


OBJECTIVE
To investigate the association between individuals' health locus of control and the use of conventional and alternative health care.


METHODS
Prospective cohort study.


METHODS
A nationally representative random sample of community-dwelling adult households in Japan.


METHODS
Health locus of control, symptom-related visits to physicians, and the use of dietary and physical complementary and alternative medicine (CAM) was measured. Dietary CAM included supplements, such as herbs and vitamins. Physical CAM included manipulations, such as acupuncture and acupressure.


RESULTS
Of the 2453 adult participants studied, 2103 (86%; 95% CI [confidence interval] = 84 to 88%) developed at least one symptom during the 31-day study period. Of these symptomatic adults, 639 visited physicians (30%; 95% CI = 28 to 32%), 480 used dietary CAM (23%; 95% CI = 21 to 25%), and 156 (7%; 95% CI = 6 to 9%) used physical CAM. The likelihood of visiting a physician was not related significantly to individuals' health locus of control. Increased use of dietary CAM was weakly associated with control by spiritual powers (P = 0.028), internal control (P = 0.013), and less control by professionals (P = 0.020). Increased use of physical CAM was significantly associated with control by spiritual powers (P = 0.009) indicating a belief that supernatural forces control individuals' health status.


CONCLUSIONS
The likelihood of visiting a physician is not affected by individuals' health locus of control. Control by spiritual powers is involved with increased CAM use. Internal control is weakly associated with greater use of dietary CAM; professional control is weakly associated with less use of dietary CAM.
Tokuda
Yasuharu
Y
Clinical Practice Evaluation and Research Centre, St Luke's Life Science Institute, Tokyo, Japan. tokuyasu@orange.ocn.ne.jp
Takahashi
Osamu
O
Ohde
Sachiko
S
Ogata
Hiromitsu
H
Yanai
Haruo
H
Shimbo
Takuro
T
Fukuhara
Shunichi
S
Hinohara
Shigeaki
S
Fukui
Tsuguya
T
D000293:Adolescent; D000328:Adult; D000368:Aged; D001294:Attitude to Health; D015331:Cohort Studies; D000529:Complementary Therapies / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006304:Health Status; D006801:Humans; D007389:Internal-External Control; D007564:Japan; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D011446:Prospective Studies
Nihon Koshu Eisei Zasshi. 1995 Feb;42(2):69-77
7718910
Nihon Koshu Eisei Zasshi. 1997 Nov;44(11):836-44
9528277
JAMA. 1998 May 20;279(19):1548-53
9605899
J Health Hum Serv Adm. 1998 Spring;20(4):502-19
10338723
Complement Ther Med. 2004 Jun-Sep;12(2-3):99-111
15561519
J Health Psychol. 2005 Sep;10(5):623-31
16033784
J Health Psychol. 2005 Sep;10(5):705-17
16033792
Pediatr Nurs. 2005 Sep-Oct;31(5):404-9
16295156
Complement Ther Clin Pract. 2006 May;12(2):163-9
16648095
J Altern Complement Med. 2004 Dec;10(6):939-45
15673987
J Rheumatol. 1999 Nov;26(11):2468-74
10555911
Br J Gen Pract. 1999 Jun;49(443):467-8
10562749
Health Commun. 2000;12(2):137-48
10938910
Nihon Eiseigaku Zasshi. 2001 Jan;55(4):597-606
11265131
N Engl J Med. 2001 Jun 28;344(26):2021-5
11430334
Health Aff (Millwood). 2001 May-Jun;20(3):219-32
11585171
Am J Public Health. 2002 Nov;92(11):1832-40
12406817
South Med J. 2002 Dec;95(12):1385-8
12597303
Health Psychol. 2003 May;22(3):294-9
12790257
J Psychosom Res. 2003 Dec;55(6):543-6
14642985
Hum Health Care. 2001 Jul-Dec;1(2):E2
14986626
Tohoku J Exp Med. 2004 May;203(1):37-45
15185970
J Consult Clin Psychol. 1976 Aug;44(4):580-5
939841
Health Educ Monogr. 1978 Spring;6(2):160-70
689890
Diabetes Care. 1984 Nov-Dec;7(6):566-74
6510181
Health Aff (Millwood). 1987 Spring;6(1):6-8
3583219
J Health Polit Policy Law. 1992 Winter;17(4):689-713
1299686
N Engl J Med. 1994 May 19;330(20):1421-5
8159197