Short Term Disability and Pay Increases

[Guest benefitsanalyst]

How do most companies handle pay increases while an employee is on a Short-Term Disability Leave ? For example, our company grants pay increases on 1/1. If someone is on STD on 1/1, do most companies wait until the employee returns to work to process the pay increase. Secondly, if the employee returns to work, is the comp typically change retro-active ?