Table 3

 Prevalence of publications using a qualitative or quantitative research paradigm, in absolute numbers and as a percentage of total empirical publications

Quantitative 281 64.6
    Descriptive survey23353.6
    Longitudinal prospective survey133
    Observational prospective study153.5
    Observational retrospective study112.5
    Other quantitative92.1
Qualitative 140 32.2
    Content analysis112.5
    Focus group163.7
    Participant observation204.6
    Other qualitative40.9
Combination of qualitative and quantitative design 14 3.2
    Descriptive survey & content analysis30.7
    Descriptive survey & interviews81.8
    Other combination of quantitative and qualitative methods30.7