The Bradford factor is a formula used by HR departments to calculate the impact of employees’ absences on the organisation. It is based on the theory that short, frequent, unplanned absences are more disruptive to organisations than longer absences.
Bradford factor scores are based on the frequency and length of an employee’s absence during a defined period, usually 52 weeks.
B= S² x D
B = Bradford factor score
S = total number of spells (instances) of absence for that individual in the given period
D = total number of days the individual was absent during the given period