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. 2020 Jul 29;15(7):e0236475. doi: 10.1371/journal.pone.0236475

Table 1. Employment-related characteristics of the workers in the Asbest Chrysotile Cohort study.

Characteristic Men Women Total
N (%) N (%) N (%)
Total* 22,463 (63) 13,374 (37) 35,837 (100)
Age at first year of employment at JSC Uralasbest (years)
 Less than 20 8,642 (38) 4,748 (35) 13,390 (37)
 20–24 7,064 (31) 3,574 (27) 10,638 (30)
 25–29 2,808 (13) 1,954 (15) 4,762 (13)
 30–34 1,417 (6) 1,161 (9) 2,578 (7)
 35–39 925 (4) 856 (6) 1,781 (5)
 40 or older 1,607 (7) 1,081 (8) 2,688 (8)
Calendar year of first year of employment at JSC Uralasbest
 Before 1960 3,613 (16) 2,245 (17) 5,858 (16)
 1960–1969 3,413 (15) 2,508 (19) 5,921 (17)
 1970–1979 5,349 (24) 3,406 (25) 8,755 (24)
 1980–1989 4,311 (19) 2,926 (22) 7,237 (20)
 1990–1999 3,484 (16) 1,508 (11) 4,992 (14)
 2000 or later 2,293 (10) 781 (6) 3074 (9)
Duration of work (years)
 1–4 7,130 (32) 3,467 (26) 10,597 (30)
 5–9 3,809 (17) 2,410 (18) 6,219 (17)
 10–14 2,853 (13) 1,921 (14) 4,774 (13)
 15–19 1,964 (9) 1,441 (11) 3,405 (10)
 20–24 1,688 (8) 1,413 (11) 3,101 (9)
 25–29 1,665 (7) 1,175 (9) 2,840 (8)
 30 or more 3,354 (15) 1,547 (12) 4,901 (14)
Main employment setting
 Mine/External rail 13,429 (60) 4,352 (33) 17,781 (50)
 Enrichment factory/Central lab 3,974 (18) 6,206 (46) 10,180 (28)
 Both 5,060 (23) 2,816 (21) 7,876 (22)
Age at last year of employment at JSC Uralasbest (years)**
 Less than 30 5,469 (24) 2,971 (22) 8,440 (24)
 30–39 4,383 (20) 2,494 (19) 6,877 (19)
 40–49 4,044 (18) 3,289 (25) 7,333 (20)
 50 or older 8,567 (38) 4,620 (34) 13,187 (37)

* Row percentage for men and women for Total, otherwise column percentage

** Irrespective of reason for leaving (e.g., retirement, dismissal, death).