Table 1 Profile of the study population (N = 261)

Sex

   Men

   Women

Age (yeas old)

   ≤40

   41–50

   51–60

   ≥61

Working hours per week

   ≤40

   41–50

   ≥51

Numbers of patients per day

   Up to around 25

   Around 30–35

   Around 40 or more

Numbers of dentists

   1

   2

   ≥3

Number of paramedical staff in the clinic

   ≤3

   4–5

   ≥6

Number of the dental chairs in the clinic

   ≤2

   3

   4

   ≥5