Table 2 Data extraction sheet

Researcher’s name

Date of data extraction

Author

Article title

Citation

Type of publication (for example, journal article, conference abstract)

Country of origin

Study characteristics

Aim/objectives of the study

Study design

Study inclusion and exclusion criteria

Recruitment procedures used (for example, details of randomisation, blinding)

Unit of allocation (for example, participant, GP practice, and so on)

Participant characteristic

Age

Gender

Ethnicity

Socioeconomic status

Disease characteristics

Co-morbidities

Number of participants

Setting of the study

Outcome/results

Whether all outcomes were defined and reported

Measurement tool or method used

Unit of measurement (if appropriate)

Length of follow-up, number and/or times of follow-up

Type of analysis used in study (for example, intention to treat, per protocol

Conclusion as per authors