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Table 2 Quality Assessment of Studies

From: The use of complementary and alternative medicine by people with cardiovascular disease: a systematic review

QAT Item Brief Definition Points Awarded Frequency of studies % (n) Reference
STUDY METHODS
                        Low risk Prospective/current data collection 2 11 (3) [9]‐[11]
                        Some risk Retrospective data collection <12 months 1 78 (21) [12]‐[32]
Piloted questionnaire (or interview schedule) Any pilot or previous use of study material 1 26 (7) [13, 22, 23, 25, 28, 29, 31]
Address potential sources of bias Report efforts to address nonresponsive bias or information bias 1 7 (2) [11, 29]
Adjust for potential confounders Any adjustment of confounders in analyses of variables associated with CAM use 1 44 (12) [9, 11, 12, 14, 15, 22]‐[24, 26, 32]‐[34]
SAMPLING
Response rate Where response rate = (no. of participants in the study/No of people invited to take part) x 100 1 48 (13) [9, 11, 12, 14, 15, 17]‐[19, 21, 26, 29, 32, 34]
Representative sampling strategy Any attempt to a representative sample of the larger population 1 26 (7) [9, 11, 12, 23]‐[25, 30]
PARTICIPANT’S CHARACTERISTICS
Specific diagnosis Report participants’ diagnoses 1 100 (27) All studies
Indicator of socioeconomic status Report participants’ socioeconomic status 0.5 67 (18) [9, 12]‐[16, 18, 19, 22]‐[24, 28, 30]‐[33, 35]
Age Report participants’ ages 0.5 100 (27) All studies
Ethnicity Report participants’ ethnicity 0.5 56 (15) [10, 12, 14, 16, 19, 22]‐[24, 26, 30]‐[35]
Gender Report participants’ gender 0.5 100 (27) All studies
CAM USAGE
CAM definition Information about the definition of CAM/a list of CAM modalities provided to participants 2 74 (20) [9, 11]‐[20, 22]‐[25, 27, 29]‐[33, 35]
Use of CAM modalities assessed Report the prevalence of use of specific CAM modalities 1 100 (27) All studies
Frequency/duration of CAM uses Report how often or for what duration the CAM were/are used by study participants 1 19 (5) [24, 25, 28, 30, 32]
Reasons for CAM use Report the reasons for the use of CAM by study participants 2 56 (15) [9, 12, 15]‐[18, 22, 23, 26, 28, 30, 31, 34, 35]