With nine healthcare systems treating over 11 million patients, PaTH gives researchers the opportunity to work with and learn from larger and more diverse populations than would be available in any single system.

The below table represents a patient population that has been active since 1/1/2016. In order to provide an accurate picture of PaTH’s “active” patient population, the counts shown are limited to patients who have received at least one diagnosis since January 1st, 2016. PaTH also offers researchers a great deal of historical patient data to work with, and while each site’s CDM has a different start date, all have data stretching back to at least 2016, representing over 15 million patients.

The PaTH informatics team works with investigators planning to use our data to help ensure that they have a clear understanding of how PaTH data may meet their needs.

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Total PaTH Network Population
*Cohort 1 *Cohort 2
N = 6,294,466 N = 17,829,317
Age *Cohort 1 *Cohort 2
17 years or younger 1,096,600 2,634,378
18-44 1,858,917 6,116,053
45-65 1,593,650 4,181,868
65 years or older 1,745,299 4,897,017
Race *Cohort 1 *Cohort 2
American Indian or Alaska Native 16,793 44,952
Asian 164,693 535,542
Black or African American 986,810 2,629,534
Native Hawaiian or Other Pacific Islander 7,710 24,732
White 4,342,123 11,556,700
Unknown/Other 849,405 3,039,204
Hispanic/Non-Hispanic *Cohort 1 *Cohort 2
Hispanic 450,831 1,361,590
Non-Hispanic 5,106,185 14,025,659
Other/Unknown 738,518 2,443,414
Sex *Cohort 1 *Cohort 2
Female 3,577,543 9,562,363
Male 2,715,028 8,261,385
Unknown/Other 2,869 6,916
RUCA *Cohort 1 *Cohort 2
Metropolitan 4,904,028 14,204,845
Micropolitan 583,043 1,544,383
Small Town 140,320 414,546
Rural 135,201 412,143
Unknown/Other 532,910 1,254,656

* Cohort 1: potential recruitment pool    Cohort 2: potential retrospective study pool

University of Pittsburgh Johns Hopkins University Geisinger University of Michigan Ohio State University Temple University Penn State University RUSH BMC
American Indian or
Alaska Native
7,382 (0.25%) 5,613 (0.28%) 3,122 (0.19%) 4,621 (0.43%) 1,304 (0.14%) 561 (0.08%) 1,148 (0.14%) 2,861 (0.28%) 1,751 (0.31%)
Asian 58,667 (2.01%) 59,736 (2.98%) 21,523 (1.31%) 55,990 (5.15%) 39,843 (4.14%) 23,757 (3.28%) 20,847 (2.54%) 43,122 (4.26%) 26,190 (4.67%)
Black or African 
American
247,472 (8.50%) 490,602 (24.44%) 83,194 (5.07%) 100,979 (9.29%) 140,579 (14.62%) 237,821 (32.83%) 46,680 (5.68%) 223,393 (22.07%) 159,219 (28.38%)
Native Hawaiian or
Other Pacific Islander
1,808 (0.06%) 622 (0.031%) 9,369 (0.57%) 901 (0.08%) 375 (0.04%) 13 (0.00%) 608 (0.07%) 1,283 (0.13%) 2,953 (0.53%)
White 2,420,172 (83.12%) 1,099,641 (54.78%) 1,277,807 (77.83%) 795,479 (73.21%) 680,043 (70.72%) 250,650 (34.60%) 535,065 (65.14%) 484,358 (47.85%) 165,276 (29.45%)
Unknown/No
Information/Other
176,036 (6.05%) 351,072 (17.49%) 246,879 (15.04%) 128,618 (11.84%) 99,510 (10.35%) 211,628 (29.21%) 217099(26.43%) 257,307 (25.42%) 205,731 (36.66%)
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