Table 3.

SHS exposure history of the flight attendants (N=49).

SHS Exposure History
Airline occupation
Total length of employment (years)	34 [22, 37] {7, 50}
Pre-ban length of employment (years)	24 [14, 29] {3, 45}
Pre-ban years as a fraction of total years (%)	79.4 [63.2, 88.4] {15.0, 100.0}
Non-airline occupation §
SHS exposure (N (%))	15 (33) *
Length of employment (years)	0 [0, 1.5] {0, 15} *
Home exposure §
Childhood (up to age 18) (N (%))	30 (61)
Adulthood (after age 18) (N (%))	21 (43)

Length of employment data is shown in median [interquartile range] {range}; non-airline occupational and home exposures data are reported as number (percentage) of flight attendants.

^*Data available for 46 flight attendants only.

^§Subjects with childhood or adulthood home exposure or subjects with non-airline occupational exposure are not mutually exclusive.