|
Cleaners (Cl)
| |
Production workers (Pw)
|
Controls (C)
| |
Significance level (FU)
|
---|
Variables
|
FU (n = 38)
|
LFU (n = 18)
|
FU (33)
|
LFU (11)
|
FU (20)
|
LFU (7)
|
Cl vs C
|
Cl vs Pw
|
Pw vs C
|
---|
Age (years) a
|
32 (10)
|
38 (9)*
|
36(10)
|
41(8)
|
39(10)
|
47(13)
|
0.022
|
0.109
|
0.320 c
|
Height (m) a
|
1.71(0.066)
|
1.72(0.069)
|
1.69(0.055)
|
1.69(0.046)
|
1.69(0.06)
|
1.72(0.08)
|
0.503
|
0.293
|
0.840 c
|
Weight (kg) a
|
61.8(8)
|
65.2(10.2)
|
64.3 (10.3)
|
60.2(7.9)
|
61.2(9)
|
62.7(9.8)
|
0.798
|
0.253
|
0.270 c
|
Employment (years) a
|
9(6.1)
|
13(7.6)*
|
11(7.3)
|
14(8)
|
6.7(7)
|
12.7(8.9)
|
0.237
|
0.157
|
0.035
c
|
Current smokers b
|
2(5.3)
|
0(0)
|
1(3)
|
0(0)
|
0(0)
|
0(0)
|
0.296
|
0.641
|
0.432 d
|
Non smokers b
|
36(94.7)
|
18(100)
|
35(97.2)
|
11(100)
|
20(100)
|
7(100)
|
0.703
|
0.510
|
0.678 d
|
Ex-smokers b
|
2(5.3)
|
0(0)
|
5(15.2)
|
4(36.4)
|
1(5)
|
0(0)
|
0.966
|
0.238
|
0.258 d
|
Primary education only b
|
12(31.6)
|
12(66.7)*
|
9(27.3)
|
4(36.4)
|
5(25)
|
4(57.1)
|
0.601
|
0.692
|
0.856 d
|
Protective device b
|
7(18.4)
|
0(0)
|
8(24.2)
|
0(0)
|
0(0)
|
0(0)
|
0.041
|
0.549
|
0.017
d
|
-
a = arithmetic mean (standard deviation); b = number (%); C = Independent t-test, d = Chi square test,