Table 2.

Persistence of SPD feelings and associated impairment of functioning among hospital workers (during the past 30 days) (n = 367).

Variable	Participants with SPD	Participants without SPD	P value
Average number of days out of 30 when you were totally unable to work (or carry out your normal activities) because of these feelings (mean (S.D)).	7.55 (6.55)	3.6 (4.77)	0.001
Average number of days in the past 30 when you were able to do only half or less of what you would normally have been able to do, because of these feelings. (mean (S.D))	6.00 (5.88)	3.7 (5.00)	0.001
Average number of times you saw a doctor or other health professional about these feelings? (mean (S.D))	1.5 (4.1)	0.7 (2.33)	0.0133
Average number of times when physical health problems have been the main cause of these feelings. (mean (SD))	1.1 (1.1)	0.9 (0.9)	0.159

SPD = Severe Psychological Distress.