Skip to main content

Table 1 Select demographics by base and participant group

From: Exposure to lead-free frangible firing emissions containing copper and ultrafine particulates leads to increased oxidative stress in firing range instructors

Variables WPAFB JBC
All
n = 12
Instructors
n = 7
Controls
n = 5
All
n = 9
Instructors
n = 4
Controls
n = 5
Male+ 83.3% 85.7% 80.0% 55.6% 100% 20.0%
Caucasian 100% 100% 100% 66.7% 100% 40.0%
Age (y)++  ± SD 25.8 ± 3.76 27.4 ± 3.46 23.4 ± 3.05 28.1 ± 4.51 32.5 ± 1.73 24.6 ± 1.95
BMI ± SD 25.9 ± 3.49 26.5 ± 3.94 25.21 ± 3.00 25.4 ± 3.59 26.6 ± 4.57 24.5 ± 2.77
E-5 Rank 50.0% 57.1% 40.0% 77.8% 75.0% 80.0%
Years at Base ± SD 1.5 ± 1.6 1.6 ± 1.9 1.5 ± 1.3 2.4 ± 1.9 2.0 ± 1.8 2.7 ± 2.0
  1. +Sex of JBC instructors versus JBC controls (p = 0.0476)
  2. ++All instructors versus all controls (p = 0.0015); Instructors at WPAFB versus JBC instructors (p = 0.0243)
  3. SD, Standard Deviation; n, number of participants; All, Instructors + controls; BMI, body mass index. E-5 Rank corresponds to the rank of Staff Sergeant in the USAF