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Table 1 Effect evaluation: outcome variables and instruments used to measure them

From: Nurse-led motivational interviewing to change the lifestyle of patients with type 2 diabetes (MILD-project): protocol for a cluster, randomized, controlled trial on implementing lifestyle recommendations

Outcome variables

Dutch guideline norms

Instruments

Care process

  

Effects of MI

-

Record keeping

Results of diabetes check-ups

-

Medical files

Metabolic parameters

  

HbA1c

< 7%

Medical files

Blood pressure

< 140 mm Hg

Medical files

Lipids:

  

   LDL

< 2.5 mmol/L

Medical files

   Total cholesterol

< 4.5 mmol/L

Medical files

Lifestyle

  

Diet:

  

   Fruit and Vegetables

2 pieces fruit (200 g or more) and 200 g vegetables or more

Validated questionnaire, 8 items [39]

   Fat consumption

Total fat < 35 energy percent

Saturated fat < 10 energy percent

Validated questionnaire, 35 items [38]

Physical activity

30 min for 5 days/week

Questionnaire, modified Dutch version of the CHAMPS, unvalidated, 15 items [40, 41]

  

Personal activity meter with diary for 7 days

Smoking

No smoking

Validated questionnaire, 2 items [37]

Alcohol consumption

Man: maximum 2 glasses

Validated questionnaire, 2 items [42]

 

Woman: maximum 1 glass

 

Quality of life

-

Validated questionnaires, EQ-5D 5 items and VAS 1 item [43, 44]

Patients' willingness to change behavior

-

Questionnaire