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Table 3 Adjusted multinomial logistic regression showing the odds of histologic types, age, and stage at diagnosis of thyroid cancer in the FCDS 1981–2014; Thyroid tumor analytic dataset

From: A comparative analysis of histologic types of thyroid cancer between career firefighters and other occupational groups in Florida

Occupation groups a

Histologic sub-types1

Follicular vs Papillary

Rare types b vs Papillary

aOR

95% CI

p-value

aOR

95% CI

p-value

 Firefighters

1.00

-

-

1.00

-

-

 Service

0.78

0.37, 1.63

0.505

4.12

1.25, 13.65

0.020

 White-collar

0.90

0.47, 1.83

0.773

3.51

1.08, 11.36

0.036

 Blue-collar

1.15

0.46, 1.80

0.702

4.59

1.40, 15.07

0.012

 Other

0.60

0.29, 1.24

0.169

3.23

0.99, 10.61

0.053

 

Age group (years) at diagnosis2

18 – 29 vs 50—69

30 – 49 vs 50—69

 Firefighters

1.00

-

-

1.00

-

-

 Service

0.51

0.25, 1.02

0.058

0.42

0.27, 0.66

0.001

 White-collar

0.33

0.17, 0.65

0.001

0.39

0.26, 0.59

 < 0.001

 Blue-collar

0.22

0.11, 0.47

 < 0.001

0.36

0.23, 0.56

 < 0.001

 Other

0.74

0.37, 1.45

0.378

0.34

0.22, 0.53

 < 0.001

 

Tumor stage 3

Early vs Late

Unknown vs Late

 Firefighters

1.00

-

-

1.00

-

-

 Service

0.96

0.63, 1.46

0.843

5.78

0.74, 45.15

0.094

 White-collar

0.90

0.61, 1.34

0.602

4.79

0.63, 36.26

0.129

 Blue-collar

0.87

0.57, 1.33

0.523

4.85

0.63, 37.57

0.131

 Other

0.83

0.55, 1.25

0.364

5.38

0.70, 41.19

0.106

  1. aOR adjusted odds ratio, 95%CI: 95% confidence interval adjusted for 1 age, gender, race, tumor stage, and diagnosis year. 2 histologic type, gender, race, tumor stage, and diagnosis year 3 histologic type, age, gender, race, and diagnosis year
  2. Significant p-value < 0.05
  3. a Other occupation includes retired, students, housewife/homemakers, farmers, and disabled
  4. b Rare histologic types include other less common/aggressive histologic types of thyroid cancer which includes oxyphilic (27%), medullary (21%), carcinoma NOS (20%), anaplastic (10%), other rare, and unknown (22%)