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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: J Safety Res. 2019 May 9;70:253–262. doi: 10.1016/j.jsr.2019.04.010

Table 4 –

Participant Demographics

Leaders (N=286) Workers (N= 1173)
Early (n=169) Lagged (n=117) Early (n=809) Lagged (n=364)
n(%) n(%) n(%) n(%)

Gender
Male 163 (99%) 100(100%) 607 (99%) 300 (100%)
Female 1(1%) 0(0%) 9 (1%) 1 (0%)
Age - Mean (SD) 43(9) 45 (10) 39(13) 38(12)
Ethnicity
White 110 (67%) 79 (79%) 295 (49%) 164 (56%)
African American 3 (2%) 1(1%) 23 (4%) 12 (4%)
Hispanic 44 (27%) 19 (19%) 270 (44%) 100 (34%)
Asian 0(0%) 0(0%) 2 (0%) 0(0%)
Native American 2 (1%) 0(0%) 4(1%) 3(1%)
Mixed 4 (2%) 1(1%) 11 (2%) 11 (4%)
Other 1(1%) 0(0%) 3 (0%) 3(1%)
Years in construction - Mean (SD) 21(9) 23 (9) 13(11) 15 (11)
Current position
Supervisor/manager 5(3%) 4 (4%) - -
Superintendent 16 (10%) 20 (20%) - -
Foreman/lead person 140 (85%) 73 (72%) - -
Experienced worker - - 413 (69%) 219 (75%)
Apprentice/trainee - - 144 (24%) 50(17%)
Laborer - - 20 (3%) 9(3%)
Other 3 (2%) 4 (4%) 20 (3%) 13 (4%)
Tenure with company
<1 year 19 (12%) 6(6%) 291 (50%) 88 (30%)
1–3 years 29 (18%) 13 (13%) 161 (27%) 84 (29%)
4–6 years 32 (20%) 13 (13%) 80(14%) 41 (14%)
7–10 years 27 (17%) 14 (14%) 23 (4%) 23 (8%)
10+ years 54 (34%) 54 (54%) 32 (5%) 57 (20%)
Wks w/current supervisor - Mean (SD) - - 39 (109) 56 (106)
Location in the US
West 128 (76%) 82 (70%) 593 (73%) 254 (70%)
Mid-west 15 (9%) 17 (15%) 32 (4%) 38(10%)
Northeast 26(15%) 18 (15%) 184 (23%) 72 (20%)
Company size
Small 26(15%) 23 (20%) 184 (23%) 58(16%)
Medium 46 (27%) 70 (60%) 164 (20%) 265 (73%)
Large 97 (57%) 24 (21%) 461 (57%) 41 (11%)
Union Status
Non-Union 110 (65%) 67 (57%) 487 (60%) 185 (51%)
Union 59 (35%) 50 (43%) 322 (40%) 179 (49%)
Trade risk level
Low risk 114 (67%) 49 (42%) 620 (77%) 181 (52%)
High risk 55 (33%) 68 (58%) 189 (23%) 173 (48%)