What can an employer do when an employee who has been invited to come to an attendance review meeting goes off sick?

If an employee claims that they are unable to attend an attendance review meeting due to sickness, the employer could ask the employee to attend an appointment with an occupational doctor so that the doctor can advise if the employee is well enough to attend such a meeting, possibly held away from the workplace. If the employer has reason to conclude that it is inappropriate to wait until the employee returns to work before conducting the review meeting, it could offer the employee the option of either presenting submissions in writing or nominating a colleague or trade union official to put their case to management at the meeting. It is not advisable to delay the attendance review meeting indefinitely.