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. 2012 May 18;11:34. doi: 10.1186/1476-069X-11-34

Table 3.

Mortality Rate Ratios (MRRs) by job category (reference White collars) and residential classification (reference Commuters)

Cause of deatha ICD - 9 Observed MRRbby job category (90% CI) ReferenceWhite collars
MRRbby residential classification (90% CI) ReferenceCommuters
Bothc Blue collars Residents in Gela
All causes
000-999
563
0.89 (0.68-1.18)
1.26 (1.01-1.56)
0.89 (0.78-1.03)
Malignant neoplasms
140-208
177
1.49 (0.94-2.36)
1.77 (1.19-2.63)
1.04 (0.81-1.33)
 Digestive organs, and peritoneum
150-159
58
1.38 (0.57-3.31)
2.38 (1.15-4.91)
0.72 (0.46-1.14)
 Colon, rectum, rectosigmoid junction, and anus
153-154
18
1.66 (0.23-11.8)
3.54 (0.68-18.39)
0.39 (0.15-1.0)
 Liver primary
155
12
1.18 (0.32-4.36)
0.50 (0.16-1.64)
1.03 (0.39-2.7)
 Respiratory and intrathoracic organs
160-165
63
1.66 (0.77-3.56)
1.71 (0.87-3.35)
1.86 (1.22-2.83)
 Trachea bronchus and lung
162
54
1.94 (0.78-4.85)
2.11 (0.96-4.63)
1.71 (1.09-2.69)
 Genitourinary organs
179-189
18
1.33 (0.38-4.07)
1.51 (0.51-4.46)
0.16 (0.05-0.56)
 Lymphatic and hematopoietic tissue
200-208
15
1.91 (0.45-8.01)
1.45 (0.39-5.37)
1.6 (0.68-3.76)
Diseases of the circulatory system
390-459
146
0.91 (0.53-1.56)
1.25 (0.81-1.93)
0.95 (0.72-1.25)
Diseases of the respiratory system
460-519
28
0.47 (0.72-3.05)
2.45 (0.84-7.15)
0.81 (0.43-1.54)
 COPD
490-496
22
0.56 (0.09-3.59)
1.99 (0.59-6.73)
0.58 (0.27-1.25)
Diseases of the digestive system 520-579 35 1.02 (0.4-2.58) 0.9 (0.42-1.9) 0.54 (0.29-1.01)

a Outcomes of a priori interest with at least 10 observed cases.

b MRR estimares are adjusted for age, calendar period, residence category or job category, and time since first employment.

c workers who were both blue collar and white collar in their employment history.