Table 2.

Characteristics of the included prospective cohort studies.

Author	Year	Country	Type of exposure	Outcome	Exposed (events/total)	Non-exposed (events/total)	Follow-up
Henry et al. (52)	2025	Seychelles	Dietary intake	IgE-associated asthma	26/297	22/184	7 years
Tsuji et al. (15)	2024	Japanese	Dietary intake and Supplement intake	IgE-associated asthma	1651/14552	1619/13867	3 years
				IgE-associated eczema	1612/14552	1623/13867
				IgE-mediated rhinoconjunctivitis	1210/14552	1312/13867
				IgE-mediated food reaction	1875/14552	1797/13867
Maslova et al. (18)	2013	Denmark	Dietary intake and Supplement intake	IgE-associated asthma	371/1333	513/213	7 years
Miyake et al. (53)	2013	Japanese	Dietary intake	IgE-associated asthma (EPA + DHA)	77/338	100/338	23–29 months
				IgE-associated eczema (EPA + DHA)	64/338	48/338
				IgE-associated asthma (fish)	78/338	95/338
				IgE-associated eczema (fish)	68/338	55/338
Jedrychowski et al. (54)	2011	Poland, USA	Dietary intake	IgE-associated eczema	38/125	76/176	12 months
Miyake et al. (55)	2009	Japanese	Dietary intake	IgE-associated eczema (EPA)	34/191	39/191	16–24 months
				IgE-associated asthma (EPA)	44/191	48/191
				IgE-associated eczema (DHA)	30/191	40/191
				IgE-associated asthma (DHA)	35/191	55/191
Chatzi et al. (13)	2008	Spain	Dietary intake	Any positive SPT	36/217	34/194	6.5 years
Sausenthaler et al. (56)	2007	Germany	Dietary intake	IgE-associated eczema	122/771	322/1727	2 years

EPA, Eicosapentaenoic Acid; DHA, Docosahexaenoic Acid; SPT, Skin Prick Test; IgE, Immunoglobulin E.