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Table 2 Hazard ratios for all-cause mortalitya

From: Survival rates and worker compensation expenses in a national cohort of Mexican workers with permanent occupational disability caused by diabetes

Characteristic

No. of workers

No. of deaths

Person-years

All-cause mortality rated

HR (95 % CI)

Adjusted HR (95 % CI)

Sex

 Female

5,339

1,526

23,271.3

65.6

1.00

1.00

 Male

28,675

11,391

119,453.9

95.4

1.45 (1.38–1.53)

1.39 (1.29–1.50)

Age at permanent occupational disability

 <40 years

2,384

842

10,151.2

82.9

1.00

1.00

 40–59 years

28,551

10,811

118,719.3

91.1

1.10 (1.02–1.18)

1.18 (1.06–1.30)

 ≥60 years

3,079

1,264

13,854.7

91.2

1.10 (1.01–1.20)

1.15 (1.01–1.31)

Occupation group

 Managers

1,167

290

3,571.0

81.2

1.00

1.00

 Technicians and associate professionals

1,485

499

6,001.7

83.1

1.02 (0.89–1.18)

1.08 (0.89–1.30)

 Professionals

1,365

428

4,902.2

87.3

1.08 (0.93–1.25)

1.20 (0.99–1.45)

 Clerks

3,913

1,267

14,411.0

87.9

1.08 (0.95–1.23)

1.20 (1.02–1.42)

 Craft and related trades

4,532

1,798

20,264.5

88.7

1.09 (0.97–1.24)

1.09 (0.93–1.29)

 Plant, machine operators and assemblers

8,396

3,284

36,652.7

89.6

1.10 (0.98–1.24)

1.11 (0.95–1.29)

 Service and sales

4,490

1,862

20,183.6

92.3

1.14 (1.00–1.29)

1.16 (0.99–1.36)

 Basic-level occupations

7,655

3,008

32,354.9

93.0

1.14 (1.01–1.29)

1.22 (1.04–1.42)

 Agricultural, forestry, and fishery

916

443

4,044.2

109.5

1.35 (1.16–1.56)

1.41 (1.15–1.73)

 No occupation specified

95

38

339.3

112.0

1.38 (0.98–1.93)

1.60 (0.93–2.76)

Base salary contribution (per day)b

 >30 USD

2,166

432

6,388.4

67.6

1.00

1.00

 10–30 USD

8,095

2,133

25,796.4

82.7

1.22 (1.10–1.36)

1.23 (1.11–1.37)

 <10 USD

11,500

4,182

44,827.9

93.3

1.38 (1.25–1.52)

1.36 (1.22–1.51)

Main complication of diabetesc

 Neurological

4,045

1,505

23,753.7

63.4

1.00

1.00

 Not specified

643

168

2,359.0

71.2

1.12 (0.96–1.32)

1.25 (1.01–1.54)

 Peripheral circulatory disorders

5,310

1,690

21,864.6

77.3

1.22 (1.14–1.31)

1.21 (1.09–1.34)

 Ophthalmic

13,830

4,948

61,973.0

79.8

1.26 (1.19–1.33)

1.30 (1.19–1.42)

 Multiple

5,810

2,021

19,350.0

104.4

1.65 (1.54–1.76)

1.79 (1.62–1.97)

 Renal

4,376

2,585

13,424.8

192.6

3.04 (2.85–3.24)

3.49 (3.18–3.83)

  1. aHazard ratios were adjusted using a Cox proportional hazard model
  2. bCorresponds to the daily salary at which a worker was registered at the Mexican Institute of Social Security. This was used to calculate the lifetime individual pension amount
  3. cDenotes the main complication that caused the permanent occupational disability state
  4. dAll-cause mortality rates are expressed as number of deaths/1,000 person-years
  5. USD indicates U.S. dollars; HR indicates hazard ratio and CI indicates confidence interval