Development of a Physiological Frailty Index for the World Trade Center General Responder Cohort
Table 5
Association between FI-Lab and various covariates: Columns 3 and 4 contain regression (beta) coefficients and corresponding values from negative binomial regression of FI-Lab (represented as deficit count) on various demographics characteristics.
Variable
Category
Beta
value
Age @ index visit
<0.0001
Sex
Female
Male
Ref
—
Race
Black
0.1994
<0.0001
Hispanic
0.0528
0.0095
Other
0.7180
White
Ref
—
Pre-9/11 occupation
Construction
0.0069
0.8290
Protective
0.0158
0.608
Other
0.0360
0.2727
CM and
Ref
—
Education
Higher than HS
0.0011
0.7042
HS or lower
Ref
—
Enrollment year
0.9536
WTC exposure severity
Low
0.5658
Medium
0.2764
High/very high
Ref
—
Smoking status @ index visit
Current
0.2415
<0.0001
Former
0.0085
0.6557
Never
Ref
—
Year of index visit
0.4492
: cleaning/maintenance of buildings and grounds; IRG: installation/repair groups (electrical, telecommunications, etc.).
