Table 3: Summary of epidemiological studies for MIH (modified from Jasulaityte et al 2008²⁷)

Country		Study		Age of children (years)		Sample size		MIH prevalance
Finland		Alaluusua et al28 1996a		12		97		25%
Finland		Leppaniemi et al29 2001		7-13		488		19.3%
Sweden		Jalevik et al30 2001		7.6-8.8		516		18.4%
Denmark		Esmark and Simonsen (1995) in Weerheijm and Mejare 200331		7		5,277		15-25%
Finland		Alaluusua et al23 1996b		6-7		102		17%
Sweden		Koch et al26		8-13		2,226		3.6-15.4% (depending on year of birth)
Turkey		Alpoz and Ertugrul (1999) in Weerheijm and Mejare 200331		7-12		250		14.8%
Slovenia		Kosem et al (2004) in William et al 200632		5-18		3,954		14.4%
Italy		Calderara et al33 2005		7.3-8.3		227		13.7%
Bosnia and		Muratbegovic et al34 2007		12		560		12.3%
Herzegovina								(2.5-32.5%)
Netherlands		Weerheijm et al35 2001b		11		497		9.7%
Lithuania		Jasulaityte et al36 2007		6.5-9.5		1,277		9.7%
(Kaunas)
Switzerland		Clavadetscher31 1997		7-8		1,671		6.4%
(Zurich)
Germany		Preusser37 et al 2007		6-12		1,022		5.9%
(Giessen)
Greece		Lygidakis et al 2004				2,640		5.7%
Germany (Dresden)		Dietrich et al27 2003		10-17		378		2.9%
Wainuiomata		Mahoney EK, Morrison DG38 2009		7-10		522		14.9%
Kenya		Kemoli AM39 2008		6-8		3,591		13.73%
Plovdiv, Bulgaria		Kukleva MP, Petrova SG, Kondeva VK, Nihtyanova TI40 2008		7-14		2,960		3.58%
Hong Kong		Cho SY, Ki Y, Chu V41 2008		12		2635		2.8%
Istanbul		Kusku OO, Caglar E, Sandalli N42 2008		7-9		147		14.9%
Dutch National		Jasulaityte L, Weerheijm KL, Veerkamp JS27 2003		9		422		14.3%
Epidemiological Survey 2003
Dutch National		Jasulaityte L, Weerheijm KL, Veerkamp JS27 2003		11				9.7%
Epidemiological
Survey 1999
Greece		Lygidakiset al43 2008		5.5-12		3,518		10.2%
Libya (Benghazi)		Fteita et al44 2006		7-8.9		378		2.9%
Australia (pediatri dental specialist referral practice)		c Chawla et al 200432 in Williams et al 2006				182 MIH		70% had ≥1 affected FPMs
UK		Zagdwon et al45 2002		7		307		14.6%