Table 2 Quotations

Total quotations in systematic review (= in 75 references):

n₁ = 781

 Quotations in one questionnaire:

  Range:

1–66

  Arithmetic mean:

10.41

  Quartiles (Q ₁ , Q ₂ /median, Q ₃ ):

3, 6, 12–13

  Mode:

2

Total quotations in questionnaires sent (= in 64 references):

n₂ = 709 (91% of n₁)

 Quotations in one questionnaire:

  Range:

1–66

  Arithmetic mean:

10.07

  Quartiles (Q ₁ , Q ₂ /median, Q ₃ ):

3, 6, 12–13

  Mode:

2

Quotations total in completed responses (= in 13 references):

n₃ = 98 (13%/14% of n₁/n₂)

 Quotations in one questionnaire:

  Range:

1–34

  Arithmetic mean:

7.54

  Quartiles (Q ₁ , Q ₂ /median, Q ₃ ):

4, 5, 8–9

  Mode:

4