Table 1: Sample characteristics and demographics.
N Sample age Work experience (y) Non-white (%) Female (%)  Sample type Country of origin Reference
 Endocrine system
53 49.9 ± 8.58 22.6 ± 10.8 N/A 63%  School teachers Germany [39]
135 46.1 ± 9.2 18.5 ± 10.7 N/A 70%  School teachers Germany; Luxembourg [40]
221 31 ± 8.73 6.56 N/A 100%  Childcare workers Netherlands [41]
37 46.12 N/A N/A 73%  Nursery and primary
 school teachers		 Spain [42]
18 43.06 ± 9.87 12.83 ± 8.68 6% 90%  School teachers USA [43]
101 36.64 ± 8.31 7.84 ± 6.41 N/A 100%  Childcare workers Netherlands [44]
24 36.9 ± 11.7 1.95 N/A 92%  Early career teachers Australia [45]
64 42.6 ± 12.5 14 ± 9 “Predominantly Caucasian” 82%  Middle school teachers USA [46]
30 45 ± 12.51 14 ± 9.1 “Predominantly Caucasian” 87.50%  Middle school teachers USA [14]
302 35 N/A 75% 79%  Secondary school teachers Malaysia [47]
64 42.83 ± 9.21 18.78 ± 9.09 N/A 80%  School teachers Spain [48]
117 43.5 ± 10.1 16.9 ± 10.9 N/A 97%  Early childcare workers Finland [49]
89 44.5 ± 10.5 15.13 N/A N/A  Early childcare workers Sweden [50]
115 30.8 ± 8.5 5 100% 100%  Nursery schoolteachers Japan [51]
115 30.8 ± 8.5 5 100% 100%  Nursery schoolteachers Japan [52]
39 27.87 ± 5.85 5 ± 4 100% 100%  Kindergarten teachers China [53]
43 28 ± 6 5 ± 4 100% 100%  Kindergarten teachers China [54]
43 28 ± 6 5 ± 4 100% 77%  Kindergarten teachers China [55]
66 43.6 ± 9.5 N/A N/A 63.63%  School teachers Germany [56]
113 46.9 ± 9.2 14.9 ± 8.5 20% 89%  School teachers USA, Canada [57]
58 43.21 ± 11.44 17.15 ± 12.95 N/A 86%  School teachers Germany [58]
24 43.5 ± 9.9 15.3 ± 9.2 N/A 100%  Preschool teachers Sweden [59]
105 39.25 ± 9.05 N/A N/A 61%  School teachers UK [60]
56 37.2 ± 9.35 12.7 N/A 64.30%  School teachers UK [61]
93 38.43 ± 8.49 15.71 ± 8.54 100% 84%  Elementary school teachers China [62]
114 39.63 ± 10.87 13.81 ± 9.73 N/A 100%  Kindergarten teachers Ukraine; Kosovo [32]
8 43 ± 15.22 17.5 ± 15.41 N/A 75%  Primary school teachers Switzerland [63]
 Cardiovascular system
92 46.3 ± 7.5 N/A 61% 100%  School teachers USA [64]
54 28.4 N/A 100% 54%  Elementary school teachers China [65]
70 40.78 ± 12.57 N/A 100% 68.60%  Primary school teachers Chile [66]
29 41.4 ± 4 N/A 100% 89.65%  Elementary school teachers China [67]
25 40 ± 7.84 14.5 ± 7.39 N/A 72%  Preschool and primary
 school teachers		 Spain [68]
79 43 N/A N/A 80%  Secondary school teachers Germany [69]
 Immune system
46 50.2 ± 8.37 22.49 ± 10.9 N/A 63%  School teachers Germany [70]
55 50 ± 8.47 22.7 ± 10.7 100%  School teachers Germany; Luxembourg [71]
47 40.5 ± 6.9 N/A N/A 0%  High school teachers Netherlands [72]
57 41.5 N/A N/A 70.17%  Primary school teachers Norway [73]
167 48 ± 20.21 N/A N/A 67%  School teachers Germany; Luxembourg [74]
Total N Mean age (weighted) Mean work experience (y)
weighted		 Mean female (%)
2968 39.68 ± 8.13 7.84 ± 3.79 79.82%