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Table 1 Characteristics of firefighters at 2017 survey with at least one pregnancy, by employment and wildland statusa

From: Occupational factors and miscarriages in the US fire service: a cross-sectional analysis of women firefighters

 

Employment status

Wildland firefighter status

Total

Volunteer

n = 157

Career

n = 917

Structural

n = 709

Wildland/WUI

n = 363

n = 1074

Demographics in 2017

     
 

Median (IQR)

 

Age at survey (years)

37 (31–46)

38 (34–45)

41 (35–47)

34 (34–39)

38 (34–45)

Total pregnanciesb

2 (1–3)

2 (1–3)

2 (1–3)

1 (1–2)

2 (1–3)

Total livebirths

1 (1–2)

1 (1–2)

2 (1–2)

1 (1–2)

1 (1–2)

 

N (%)

 

Race, white

148 (95)

845 (93)

643 (92)

349 (96)

993 (93)

Hispanic ethnicity

< 5

51 (6)

44 (6)

10 (3)

55 (5)

BMI

  ≤ 24.9 kg/m2

48 (31)

479 (52)

254 (36)

272 (75)

527 (49)

 25–29.9 kg/m2

51 (32)

295 (32)

287 (40)

58 (16)

346 (32)

  ≥ 30 kg/m2

58 (37)

143 (16)

168 (24)

33 (9)

201 (19)

Highest completed education

 Some college or less

102 (65)

538 (59)

370 (52)

269 (74)

640 (60)

 College and above

55 (35)

379 (41)

339 (48)

94 (26)

434 (40)

Marital status

 Married or in partnership

107 (68)

721 (79)

515 (73)

312 (86)

828 (77)

Household income

  > $75,000

77 (49)

601 (66)

570 (81)

107 (29)

678 (63)

  ≤ $75,00

79 (51)

315 (34)

137 (19)

256 (71)

394 (37)

Smoking status

 Current

22 (14)

30 (3)

41 (6)

11 (3)

55 (5)

 Former

47 (30)

155 (17)

165 (23)

37 (10)

202 (19)

 Never

88 (56)

732 (80)

503 (71)

319 (87)

820 (76)

History of miscarriage

70 (45)

261 (28)

279 (39)

51 (14)

331 (31)

History of pre-term birth

135 (15)

36 (23)

136 (19)

34 (9)

171 (16)

Menopause status

 Premenopausal

103 (71)

693 (78)

494 (72)

302 (86)

796 (77)

 Perimenopausal

17 (12)

91 (10)

85 (12)

22 (6)

108 (10)

 Postmenopausal

25 (17)

109 (12)

105 (15)

28 (8)

134 (13)

Occupational factors in 2017

     
 

Median (IQR)

 

Years since most recent pregnancy in fire service

8 (3–14)

5 (2–12)

8 (3–14)

2 (2–8)

6 (2–13)

 

N (%)

 

Employment status

 Volunteer

118 (17)

39 (11)

157 (15)

 Career

591 (83)

324 (89)

917 (85)

Wildland fire activity

 No (structural)

118 (75)

591 (65)

709 (100)

709 (66)

 Yes (wildland only)

< 5

22 (2)

26 (7)

26 (2)

 Yes (WUI)

35 (22)

302 (33)

337 (93)

337 (31)

Current rank

 Firefighter

75 (48)

328 (36)

160 (23)

242 (67)

403 (38)

 Firefighter/paramedic

30 (19)

225 (25)

212 (30)

43 (12)

255 (24)

 Driver operator

7 (5)

77 (8)

66 (9)

18 (5)

84 (8)

 Lieutenant

10 (6)

89 (10)

82 (12)

16 (4)

99 (9)

 Captain

8 (5)

95 (10)

76 (11)

27 (7)

103 (10)

 Chief

14 (9)

74 (8)

77 (11)

11 (3)

88 (8)

 Paramedic

5 (3)

5 (1)

10 (1)

0 (0)

10 (1)

 Other

8 (5)

23 (3)

26 (4)

5 (1)

31 (3)

Shift schedule (career only)

 24 h or more on shift

735 (80)

444 (76)

290 (90)

735 (80)

 Less than 24 h on shift

179 (20)

144 (24)

34 (10)

179 (20)

Department policy regarding pregnancy and/or maternity

 Yes

57 (36)

712 (78)

461 (65)

306 (84)

769 (72)

 No

72 (46)

173 (19)

204 (29)

41 (11)

245 (23)

 Don’t know

28 (18)

32 (3)

44 (6)

16 (4)

60 (6)

  1. IQR interquartile range, BMI Body mass index (kg/m2), WUI wildland urban interface
  2. Responses may not sum to totals due to missing responses not shown here. Percentages may not sum to 100 due to rounding
  3. a All data were collected at time of survey in 2017. Unless otherwise noted, variable is self-reported in 2017
  4. b Includes pregnancies that resulted in either livebirth, miscarriage, stillbirth, or pregnancy termination