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Table 3 Limitations associated with study outcomes in 16 studies reviewed

From: Effectiveness of IT-based diabetes management interventions: a review of the literature

Issue

Limitation

Design

Not randomised [24, 27]

 

No control group [28]

 

Short duration of the intervention [[15], 1623]

Sample

Sample not representative [22, 23]

 

Small sample size [28]

 

Sampling population restricted to patients who accessed hospital web page [30]

Intervention effect

Unable to determine intervention component contributing to the observed change [23, 29]

 

Unmeasured variable contributing to observed change [28]

 

Possibility of increased attention to management contributing to observed change [19, 20]

 

Mean baseline HbA1c close to 7% [17, 20, 25]

 

Concomitant exposure to another intervention [27]

Participant dropout

Non-random participant dropout [19]

 

Complete data not available for all participants [29]