Table 1.

Source of interview and coverage by enrollment group, World Trade Center Health Registry

WTCHR enrollment groupsa	Total		Source of Interview				Estimated population size	Estimated coverage
			List-identified		Self-identified
	N	%	N	%	N	%	N	%
Total	71,437	100.0	21,239	29.7	50,198	70.3	409,492	17.4
Rescue–recovery workers and volunteers	30,665	42.9	11,387	37.1	19,278	62.9	91,469	33.5
New York City Police Department (NYPD)	3,757	5.3	70	1.9	3,687	98.1	5,000b	75.1
New York City Fire Department (FDNY)	3,196	4.5	71	2.2	3,125	97.8	11,000	29.1
Emergency Medical Service (EMS), medical, or disaster personnel	1,314	1.8	86	6.5	1,228	93.5	N/A	N/A
Construction or engineering	4,363	6.1	2,512	57.6	1,851	42.4	20,397	21.4
NYC Department of Sanitation	2,117	3.0	1,786	84.4	331	15.6	3,400	62.3
Volunteer organizations	5,500	7.7	3,669	66.7	1,831	33.3	26,480	20.8
Unaffiliated volunteers	1,889	2.6	461	24.4	1,428	75.6	N/A	N/A
State agencies	336	0.5	81	24.1	255	75.9	8,897	3.8
Federal Emergency Management Agency (FEMA)	436	0.6	288	66.1	148	33.9	3,499	12.5
Federal agencies (not including FEMA)	1,577	2.2	399	25.3	1,178	74.7	5,122	30.8
Other	6,180	8.7	1,964	31.8	4,216	68.2	N/A	N/A
Schools south of Canal Street	2,646	3.7	397	15.0	2,249	85.0	15,197	17.4
Students (preK-12)	2,075	2.9	289	13.9	1,786	86.1	12,466	16.6
Staff	571	0.8	108	18.9	463	81.1	2,731	20.9
Residents south of Canal Street	14,665	20.5	3,850	26.3	10,815	73.7	57,511	25.5
Lived south of Chambers Street on 9/11	8,170	11.4	2,241	27.4	5,929	72.6	21,926	37.3
Lived between Chambers and Canal Streets on 9/11	6,495c	9.1	1,609	24.8	4,886	75.2	35,585	18.3
Building occupants, passersby, and people in transit south of Chambers Street on 9/11	43,487	60.9	9,859	22.7	33,628	77.3	362,092	12.0
Occupants of WTC towers or other damaged or destroyed buildings	10,393	14.6	3,367	32.4	7,026	67.6	24,015	43.3
Occupants of other buildings nearby	19,900	27.9	3,589	18.0	16,307	81.9	38,077	52.3
Passersby or people in transit	13,194	18.5	2,903	22.0	10,295	78.0	300,000	4.4

N/A Data not available

^aWTCHR eligibility groups are not mutually exclusive; approximately 26% of registrants belong to more than one eligibility group.

^bThe estimated population of 5,000 NYPD workers is most likely an underestimate.

^cIncludes 1,176 residents from zip codes 10002 and 10013 that lived north of Canal Street on 9/11.