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