Does diet modification and physical exercise helps in controlling blood sugar compared to those who did not modify their diet or do physical exercise within six months period?

My P•P: Type 2 diabetes adult patients
• I: Diet modification and physical exercise
• C: Compared to those who did not modify their diet or do physical exercise
• O: Controlling blood sugar
• T: Within six months period
My sentence format for my PICOT question would be, in type 2 diabetes adult patients, does diet modification and physical exercise helps in controlling blood sugar compared to those who did not modify their diet or do physical exercise within six months period?