Page 73 - JSOM Spring 2026

FIGURE S1 Plotting the
relationship between the
mean difference and average
post-SFAUC GBEV.
(A) Entire test-retest
reliability sample (n=13,
rho=0.907, P<.001).
(B) Sensitivity analysis
sample. Removal of 3
ARSOF members who
reported blast exposure
between the two post-
SFAUC time points (n=10,
rho=0.867, P=.001).
(C) Removal of 2 outliers
from Figures S1A and S1B
(n=11, rho=0.845, P=.001).

SFUAC = Special Force
Advanced Urban Combat
training; GBEV = general
blast exposure value;
ARSOF = United States
Army Special Operations
Forces.

TABLE S1 Trainers and Trainees GBEV Values
Trainers; n=7 Trainees; n=34
Mean 1,236,017,682.0 (SD 2,210,253,267.5) 13,252,626.0 (SD 26,387,544.9)
Median 2,770,073,188.0 (IQR 100,415,806.0–1,008,662,144.0) 2,821,636.0 (IQR 812,996.0–13,062,570.0)
GBEV = generalized blast exposure value.

TABLE S2 GBEV and BETS Weapon Category-by-Weapon Category Test-Retest Reliability
Test-retest reliability (n=10)
Variable ICC (95% CI) SEM
3,1
GBEV 0.588 (0.096–0.849) 4,360,000.00
Weapons Category 1 0.143 (–0.409 to 0.619) 310,000.00
Weapons Category 2 0.783 (0.441–0.926) 66.10
Weapons Category 3 0.689 (0.262–0.891) 324.00
Weapons Category 4 0.785 (0.446–0.927) 2,610.00
Weapons Category 5 0.196 (–0.362 to 0.651) 4,770.00
Note: Three ARSOF members were excluded from the total sample of 13 because they reported exposure to blasts in between the two post-
SFAUC time points.
Weapon Category 1: small and medium arms
Weapon Category 2: large arms, often shoulder-fired, that can be carried on a person
Weapon Category 3: artillery, missile weapon systems, or large arms carried by vehicle, aircraft, or boat
Weapon Category 4: smaller explosives or grenades
Weapon Category 5: larger explosives or targeted explosives at close range
ARSOF = United States Army Special Operations Forces; GBEV = generalized blast exposure value; ICC = intraclass correlation coefficient;
SEM = standard error of measurement.

BETS Reliability and Validity | 71