Table 4.
Parameter | Lower boundb | Midpointc | Upper boundd |
---|---|---|---|
Any new or worsening respiratory symptom | |||
Rescue–recovery workers and volunteers | 32,300 | 41,200 | 61,800 |
Building occupants, passersby, and people in transit | 86,600 | 112,400 | 161,500 |
Residents south of Canal St. | 5,900 | 7,600 | 8,900 |
Total | 124,800 | 161,200 | 232,200 |
Newly diagnosed asthma | |||
Rescue–recovery workers and volunteers | 1,100 | 1,600 | 3,700 |
Building occupants, passersby, and people in transit | 2,400 | 3,700 | 8,300 |
Residents south of Canal St. | 300 | 400 | 600 |
Total | 3,800 | 5,700 | 12,600 |
Serious psychological distress | |||
Rescue–recovery workers and volunteers | 1,700 | 2,500 | 3,400 |
Building occupants, passersby, and people in transit | 7,700 | 11,400 | 16,000 |
Residents south of Canal St. | 300 | 400 | 600 |
Total | 9,700 | 14,300 | 20,000 |
Probable PTSD | |||
Rescue–recovery workers and volunteers | 7,300 | 10,600 | 13,700 |
Building occupants, passersby and people in transit | 26,500 | 38,000 | 54,700 |
Residents south of Canal St. | 800 | 1,100 | 1,800 |
Total | 34,600 | 49,700 | 70,200 |
aBurden estimates are rounded to the nearest hundred.
bLower bound estimate adjusts for the possibility that even among listed persons, those ill were 50% more likely to enroll in the WTCHR. The lower bound estimate is the product of the total population exposed and the ratio of A to B, where (A) is the number of list-identified persons who were ill and (B) is the sum of the number of list-identified persons who were healthy ×1.5 and the number of list-identified persons who were ill.
cMidpoint estimate is the product of the percent ill among list-identified persons and the total population exposed
dUpper bound estimate is the product of the percent ill among self-identified persons and the total population exposed