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. 2016 Dec 19;2:2. doi: 10.1038/s41526-016-0001-9

Table 1.

Demographics

Shuttle (n = 13) ISS (n = 14)
Mean Sd Mean Sd F(1, 27) p-value
Age (years) 47.2 1.0 48.8 1.0 1.40 0.25
Mission duration (days) 13.7 3.4 162.0 3.3 975.22 <0.001
Days in space pre-flight 88.5 24.2 40.6 23.3 8.82 0.007

ISS International space station