Table 1.

Incidence of Legg-Calvé-Perthes' disease*.

Study	Year	City, country	Region	Ethnicity	No Pts	Incid
Joseph et al. [5]	1988	Vellore, India	Asia	Indo-Med (Indian)	4	0.4
Purry [6]	1982	Eastern Cape, South Africa	Africa	Black	6	0.45
Kim et al. [7]	2006	Japan	Asia	Indo-Malay (Japanese)	711	0.9
Purry [6]	1982	Eastern Cape, South Africa	Africa	Mixed	11	1.73
Ebong [8]	1977	Nigeria	Africa	Black	10	1.8
Rowe et al. [9]	2005	Chonnam, Korea	Asia	Indo-Malay (Korean)	84	3.8
Joseph et al. [5]	1988	Udupi, India	Asia	Indo-Med (Indian)	138	4.4
Wijesekera [10]	1984	Kurunegala, Sri Lanka (Ceylon)	Asia	Indo-Med (Indian)	76	3.96
Thompson and Leong [11]	1978	Hong Kong	Asia	Indo-Malay (Chinese)	32	4.5
Gray et al. [12]	1972	British Columbia, Canada	North America	White	379	5.1
Barker et al. [13]	1978	Wessex, England	British Isles	White	34	5.5
Molloy and MacMahon [14]	1966	Massachusetts	North America	White†	86	5.7
Hall and Barker [15]	1989	Yorkshire, England	British Isles	White	101	6.1
Barker et al. [13]	1978	Trent, England	British Isles	White	78	7.6
Moberg and Rehnberg [16]	1964	Zealand, Denmark	Scandinavia	White	NA	8.0
Moberg and Rehnberg [16]	1992	Uppsala, Sweden	Scandinavia	White	51	8.5
Moberg and Rehnberg [16]	1964	Jutland, Denmark	Scandinavia	White	NA	9.0
Wiig et al. [17]	2006	Norway	Scandinavia	White	425	9.2
Purry [6]	1982	Easter Cape, South Africa	Africa	White	38	10.8
Margetts et al. [18]	2001	Liverpool, England	British Isles	White	122	11.1
Barker et al. [13]	1978	Mersey, England	British Isles	White	68	11.1
Kealey et al. [19]	2000	Northern Ireland	British Isles	White	313	11.6
Pillai et al. [20]	2005	Dumfries, Scotland	British Isles	White	40	15.4
Hall et al. [21]	1983	Liverpool, England	British Isles	White	157	15.6
Niclasen [22]	1974	Faroe Islands, Denmark	Scandinavia	White	43	29.0

*(per 100,000 children <15 yrs old).

^†one of the 86 children was African.

NA: not available.