|
Personal variables
|
Control n (%)
|
WWMHP n (%)
|
|---|
|
Phase 1
|
Phase 2
|
p
|
Phase 1
|
Phase 2
|
p
|
|---|
|
Sex
|
|
Male
|
425 (87.6)
|
379 (92.2)
|
0.208
|
841 (87.4)
|
544 (87.6)
|
0.358
|
|
Female
|
60 (12.4)
|
32 (7.8)
| |
121 (12.6)
|
77 (12.4)
| |
|
Age
|
|
< 24
|
38 (7.8)
|
24 (5.8)
|
0.814
|
78 (8.1)
|
54 (8.5)
|
0.953
|
|
25–34
|
143 (29.4)
|
117 (28.3)
| |
305 (31.8)
|
188 (29.6)
| |
|
35–44
|
141 (29.0)
|
128 (31.0)
| |
305 (31.8)
|
207 (32.6)
| |
|
45–54
|
124 (25.5)
|
108 (26.2)
| |
207 (21.6)
|
139 (21.9)
| |
|
55+
|
40 (8.2)
|
36 (8.7)
| |
65 (6.8)
|
47 (7.4)
| |
|
Relationship status
|
|
Not married or de facto
|
81 (16.7)
|
54 (13.1)
|
0.757
|
124 (12.9)
|
92 (14.6)
|
0.539
|
|
Married or de facto
|
373 (76.7)
|
327 (79.4)
| |
779 (81.2)
|
501 (79.3)
| |
|
Separated/divorced/widowed
|
32 (6.6)
|
31 (7.5)
| |
56 (5.8)
|
39 (6.2)
| |
|
Mine type
|
|
Open cut
|
174 (35.7)
|
206 (49.9)
|
0.039
|
599 (61.8)
|
347 (54.5)
|
0.242
|
|
Underground
|
314 (64.3)
|
207 (50.1)
| |
370 (38.2)
|
290 (45.5)
| |
|
Mine workers
|
|
FIFO/DIDO
|
303 (62.2)
|
342 (83.2)
|
< 0.001
|
111 (11.5)
|
71 (11.2)
|
0.370
|
|
Local
|
184 (37.8)
|
69 (16.8)
| |
856 (88.5)
|
565 (88.8)
| |
|
Employment category
|
|
Manager
|
26 (5.3)
|
16 (3.9)
|
< 0.001
|
42 (4.3)
|
16 (2.5)
|
< 0.001
|
|
Professional
|
85 (17.5)
|
28 (6.8)
| |
113 (11.7)
|
22 (3.5)
| |
|
Trades worker
|
179 (36.8)
|
147 (35.9)
| |
315 (32.5)
|
189 (29.9)
| |
|
Machinery operator
|
155 (31.8)
|
192 (46.8)
| |
452 (46.6)
|
384 (60.7)
| |
|
Admin or other
|
42 (8.6)
|
27 (6.6)
| |
47 (4.9)
|
22 (3.5)
| |
- Logistic regression was used to examine differences in the composition of the sample between Phase One and Phase Two, across both treatment conditions
