Table 3:

Total IIH Prevalence In the United States From 1990 to 2024. Values represent total cases per 100,000 people in each time period.

Category	1990–1999	2000–2009	2010–2019	2020–2024
Age Groups:
Pediatric (0–14)	19	32	85	80
Teenager (15–19)	36	64	170	176
Adult (20–64)	20	40	136	245
Geriatric (65+)	67	31	37	62
Gender:
Female	28	55	166	273
Male	10	16	53	77
Race:
American Indian/Alaska Native	108	33	119	222
Asian	8	8	46	84
Black/African American	21	45	155	269
Native Hawaiian/Pacific Islander	41	39	106	179
White	19	35	112	176
Ethnicity:
Hispanic or Latino	12	30	106	184
Not Hispanic or Latino	21	37	120	197