Table 3.

Standardized Coefficients and Group Centroids (Stress-related factors).

Factor	Group centroids
Isolation from family or friends	0.93
Yes	0.56
Cultural difference at work	0.30
Supervisors demands	0.21
Bullying from co-workers	0.21
Trouble sleeping	0.19
Amount of food available	0.09
Food quality	0.08
Seasickness	0.07
Worry about money	0.02
Company care	−0.04
COVID-19	−0.06
Shift work	−0.06
No internet or limited internet access	−0.08
Bad weather / rough sea	−0.08
Working alone	−0.26
Length of contract	−0.27
Not allowed to get off the ship in port	−0.34
No	−0.28