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Table 1 Sociodemographic and tumor characteristics of firefighters and other occupation groups 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

Characteristics

 

Occupation

Total

n = 8,291

Firefighters

n = 120 (1.5%)

Service

n = 834, (10.1%)

White-collar

n = 4,893, (59.0%)

Blue-collar

n = 655, (7.9%)

Other a

n = 1,789 (21.6%)

Mean age (SD) b

46.8 (12.3)

43.8 (10.7)

46.3 (12.1)

47.3 (11.8)

50.2 (11.4)

44.7 (14.0)

p-value

 < 0.001e

ref

0.047

0.001

 < 0.001

0.487

Age categories n (%)

p-value

 < 0.001 e

ref

 < 0.001

 < 0.001

 < 0.001

 < 0.001

 18 to 29

828 (10.0)

13 (10.8)

90 (10.8)

378 (7.7)

31 (4.7)

316 (17.7)

 30 to 49

3,804 (45.9)

72 (60.0)

397 (47.6)

2,319 (47.4)

271 (41.4)

745 (41.6)

50 to 69

3,659 (44.1)

35 (29.2)

347 (41.6)

2,196 (44.9)

353 (53.9)

728 (40.7)

Gender n (%)

p-value

 < 0.001 e

ref

 < 0.001

 < 0.001

0.001

 < 0.001

 Male

1,845 (22.3)

95 (79.2)

167 (20.0)

1,015 (20.7)

418 (63.8)

150 (8.4)

 Female

6,446 (77.7)

25 (20.8)

667 (80.0)

3,878 (79.3)

237 (36.2)

1,639 (91.6)

Race n (%)

p-value

 < 0.001 e

ref

 < 0.001

0.007

0.003

0.004

 White

7,305 (88.1)

113 (94.2)

684 (82.0)

4,363 (89.2)

571 (87.3)

1,574 (88.0)

 Non-White

938 (11.3)

– –

148 (–)

501 (10.2)

81 (–)

202 (11.3)

 Unknown

48 (0.6)

– –

– –

29 (0.6)

– –

13 (0.7)

Ethnicity n (%)

P-value

 < 0.001 e

ref

 < 0.001

0.008

0.003

 < 0.001

 Hispanic

1,543 (18.6)

14 (11.7)

184 (22.1)

762 (15.6)

125 (19.1)

458 (25.6)

 Non-Hispanic

6,696 (80.8)

104 (–)

646 (–)

4,101 (83.8)

526 (–)

1,319 (73.7)

 Unknown

52 (0.6)

– –

– –

30 (0.6)

– –

12 (0.7)

Diagnosis year n (%)

P-value

 < 0.001 e

ref

 < 0.001

 < 0.001

0.007

 < 0.001

 1981- 1991

222 (2.7)

– –

10 (1.2)

127 (2.6)

30 (4.6)

46 (2.6)

 1992 – 2002

1,308 (15.8)

14 (–)

117 (14.0)

665 (13.6)

91 (13.9)

421 (23.5)

 2003 – 2014

6,761 (81.6)

97 (80.8)

707 (84.8)

4,101 (83.8)

534 (81.5)

1,322 (74.0)

Tumor stage n (%) c

P-value

0.002 e

ref

0.001

 < 0.001

0.001

0.001

 Early

5,590 (67.4)

77 (64.2)

576 (69.1)

3,349 (68.4)

400 (61.1)

1,188 (66.4)

 Late

2,331 (28.1)

42 (–)

222 (26.6)

1,343 (27.5)

217 (33.1)

507 (28.3)

 Unknown

370 (4.5)

– –

36 (4.3)

201 (4.1)

38 (5.8)

94 (5.3)

  1. Bold designates significant p-values adjusted for any Bonferroni correction
  2. Note: – – Represents sample sizes less than 10, which are not reported due to FCDS confidentiality rules, – some data is suppressed to prevent back calculation of counts
  3. Percentages may not add up to 100% due to rounding
  4. a Other occupation includes farmworkers, retired, students, housewife/homemakers, and disabled
  5. b Age is age at cancer diagnosis; SD is standard deviation
  6. c Based on SEER stage 2000, excludes stage 0, late stage includes regional and distant metastasis
  7. e Statistical comparison between all occupation groups, p-values are calculated either with Student’s t-test for continuous variables or with chi-squared test for independence and considered statistically significant when p-value < 0.05. Other P-values are adjusted for multiple pairwise comparison between firefighters and each occupation group using Fisher’s exact test with adjusted Bonferroni protected probability of p =  < 0.0021
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BMC Endocrine Disorders

ISSN: 1472-6823

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