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Table 2 Secondary analysis of HbA1c (%) for patients with levels recorded within the year before the trial and within the year of the trial itself

From: Effect of telehealth on glycaemic control: analysis of patients with type 2 diabetes in the Whole Systems Demonstrator cluster randomised trial

 

Control group mean (standard deviation) (n = 191)

Intervention group mean (standard deviation) (n = 266)

Difference in mean HbA1c during trial (95% confidence interval)

 

Before trial

During trial

Before trial

During trial

Unadjusted

Adjusted*

Mean HbA1c

8.41 (1.64)

8.38 (1.60)

8.38 (1.68)

8.15 (1.49)

-0.26

-0.30

(-0.60, 0.07)

(-0.52, -0.07)

     

p = 0.125

p = 0.009

  1. *Adjusted for age; sex; last recorded HbA1c, blood pressure, cholesterol quartile and BMI quartile; site (Cornwall, Kent or Newham); smoking status; co-morbid ischemic heart disease; and diabetes management (insulin or non-insulin).