TABLE 2.

Absenteeism rates for employees in high risk departments

		Absenteeism rates*
	Influenza outbreak	Outbreak season		Other seasons		P
1986–87	No	0.038	versus	pre-‘flu’:	0.044	NS
				post ‘flu’:	0.036	NS
				all other:	0.034	NS
1987–88	Yes	0.049	versus	pre-‘flu’:	0.037	0.003
				post ‘flu’:	0.036	0.001
				all other:	0.037	0.002

^*Absenteeism was expressed as the number of hours lost per numbers of hours paid. NS Not significant