Table 2.

Overview of clinical features of reported EPP patients

Characteristics	Variable	N	%
	Total No. of patients	98	100.0
Sex	Female	37	37.8
	Male	61	62.2
Age at diagnosis, years	Median(min, max)	20.5(2,78)
Photosensitivity disorders		91	92.9
Abdominal pain	Yes	23	23.5
	No	75	76.5
Jaundice	Yes	23	23.5
	No	75	76.5
Anemia	Yes	33	33.7
	No	65	66.3
Hypochromic anemia	Yes	9	9.2
Liver dysfunctions	Elevated	51	52.0
	Normal	47	48.0
Hematoporphyrin	Elevated	72	73.5
	Normal	26	26.5
Liver cirrhosis	Yes	12	12.2
	No	86	87.8
Liver failure	Yes	11	11.2
	No	87	88.8
Liver biopsy	Yes	25	25.5
	No	73	74.5
Typical presentation of liver biopsya	Yes	19	76
Genetic Testing	Yes	69	70.4
	No	29	30.6
Prognosis	Dead	4	4.1

^aTypical presentation of liver biopsy includes birefringent crystals and “Maltese cross” configuration of crystals