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. 2021 Oct 8;18(19):10555. doi: 10.3390/ijerph181910555

Table 1.

Sub-ample sizes and average ages for experimental groups.

Nationality Gender 20s 30s 40s 50s Over 60
Korean Male 38 (25.44) 1 27 (33.40) 28 (45.14) 14 (55.14) 13 (64.53)
Female 35 (24.74) 39 (34.33) 17 (46.11) 19 (55.52) 10 (64.00)
Total 73 (25.11) 66 (33.95) 45 (45.51) 33 (55.36) 23 (64.30)
American Male 38 (26.39) 42 (34.28) 19 (44.10) 24 (54.50) 21 (69.52)
Female 31 (26.25) 36 (33.50) 18 (43.44) 21 (53.66) 23 (65.91)
Total 69 (26.33) 78 (33.92) 37 (43.78) 45 (54.11) 44 (67.63)

1 The numbers in brackets are average ages.