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. 2022 Oct 20;12:04092. doi: 10.7189/jogh.12.04092

Table 1.

Demographic characteristics for first responders with sleep disorders

Gender (n)
Author (year)
Country
Mean age (years)
Sample size (N)
Male
Female
Other
Study design
Study quality
Angehrn et al. (2020) [13]
Canada
39.0
4019
NA
NA
4019
Cross-sectional
8 – M
Barger et al. (2015) [14]
USA
40.4 (±8.9)
6933
6360
410
163
Cross-sectional
9 – L
Cramm et al. (2021) [15]
Canada
40.0
1217
1024
77
116
Cross-sectional
8 – M
Fernandez et al. (2014) [16]
USA
36.9
1047
703
255
89
Cross-sectional
10 – L
Garbarino et al. (2002) [17]
Italy
29.7 (±5.6)
1280
1060
220
NA
Cross-sectional
7 – M
Garbarino et al. (2019) [18]
Italy
36.0 (±7.4)
236
236
NA
NA
Cross-sectional
7 – M
Glaser et al. (2014) [19]
USA
51.5 (±7.9)
636
636
NA
NA
Cross-sectional
8 – M
Haddock et al. (2013) [20]
USA
38.2 (±9.9)
458
458
NA
NA
Cross-sectional
8 – M
Hendrickson et al. (2022) [21]
USA
39.6 (±1.1)
187
NA
NA
187
Cross-sectional
7 – M
Jang et al. (2020) [22]
South Korea
40.0
9,738
9080
658
NA
Cross-sectional
9 – L
Khan et al. (2020) [23]
Australia
39.1 (±12.1)
136
62
74
NA
Cross-sectional
7 – M
Khan et al. (2020) [24]
Australia
44.1 (±12.1)
83
83
NA
NA
Cross-sectional
7 – M
Khan et al. (2020) [24]
Saudi Arabia
39.1 (±12.1)
104
104
NA
NA
Cross-sectional
7 – M
Kim et al. (2021) [25]
South Korea
40.7 (±9.6)
51 149
46 544
4605
NA
Cross-sectional
9 – L
Klawe et al. (2005) [26]
Poland
47.1 (±3.2)
21
NA
NA
21
Cross-sectional
7 – M
Kwak et al. (2020) [27]
South Korea
40.1 (±8.7)
352
328
24
NA
Cross-sectional
8 – M
Lim et al. (2020) [28]
South Korea
39.6 (±8.7)
9788
9124
664
NA
Cross-sectional
9 – L
Pan et al., (2019) [29]
China
40.1 (±9.1)
1036
799
237
NA
Cross-sectional
9 – L
Pazmino Erazo et al. (2020) [30]
Ecuador
30.0
27
16
11
NA
Cross-sectional
7 – M
Pinto et al. (2018) [31]
Brazil
34.6 (±6.1)
22
22
NA
NA
Cross-sectional
7 – M
Pirrallo et al. (2012) [32]
USA
35.7
1306
905
401
NA
Cross-sectional
7 – M
Rajaratnam et al. (2011) [33]
USA and Canada
38.5 (±8.3)
4957
4079
861
17
Prospective cohort
9 – L
Savall et al. (2021) [34]
France
39.1 (±11.5)
193
159
34
NA
Cross-sectional
7 – M
Shi et al. (2021) [35]
USA
42.9
268
156
112
NA
Cross-sectional
7 – M
Sofianopoulos et al. (2020) [36]
Australia
39.7
60
46
14
NA
Cross-sectional
7 – M
Sunderram et al. (2018) [37]
USA
52.8 (±9.9)
601
498
103
NA
Cross-sectional
9 – L
Tsehay et al. (2021) [38]
Ethiopia
34 (±7.4)
385
324
61
NA
Cross-sectional
8 – M
Webber et al. (2011) [39]
USA
42.3 (±8.0)
4756
NA
NA
4756
Prospective cohort
7 – M
Yadav et al. (2015) [40] India 26.6 (±0.6) 85 34 51 NA Cross-sectional 7 – M

F – female, h – poor quality, L – high quality, M – moderate quality, Ma – male, NA – not available, USA – United States of America