Figure 1 in Self-reported headache among the employees of a Swiss university hospital: prevalence, disability, current treatment, and economic impact

Figure 1 Comparison of age (a), gender (b) and occupation (c) among the 1192 respondents and all university hospital employees (in %). (b) Comparison of gender distribution among the 1192 respondents With those of University hospital employees (in %). (c) Comparison of distribution of occupation in the sample of 1192 respondents With the distribution of occupation of the university hospital employees in total (in %).