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Table 2 Cover letter mediators overall and by study factors

From: Impact of different cover letter information and incentives on Veterans’ emotional responses to an unsolicited mailed survey about military traumas: a randomized, 3x2x2 factorial trial

Cover Letter Mediator

Overall

Topics Covered by Survey

How Name was Obtained

Incentive

Combat

Military Sexual Trauma

Life Experiences that Affect Well-Being

List of OEF/OIF/OND Veterans

List of Veterans applying for Disability Benefits

$20

$40

Read cover letter carefully

  Men

N = 190

n = 68

n = 66

n = 56

n =84

n =106

n =81

n =109

    Not at all

5.8

4.4

7.6

5.4

8.3

3.8

4.9

6.4

    A little bit

11.6

5.9

15.2

14.3

11.9

11.3

9.9

12.8

    Somewhat

41.1

47.1

28.8

48.2

40.5

41.5

46.9

36.7

    Very

39.0

39.7

45.5

30.4

35.7

41.5

33.3

43.1

    Didn’t read

2.6

2.9

3.0

1.8

3.6

1.9

4.9

0.9

  Women

n = 193

n = 59

n = 67

n = 67

n =92

n =101

n =87

n =106

    Not at all

9.4

10.3

9.0

9.0

13.2

5.9

9.3

9.4

    A little bit

12.5

15.5

9.0

13.4

8.9

15.8

12.8

12.3

    Somewhat

32.8

37.9

29.9

31.3

31.9

33.7

33.7

32.1

    Very

40.6

31.0

47.8

41.8

42.9

38.6

38.4

42.5

    Didn’t read

4.7

5.2

4.5

4.5

3.3

5.9

5.8

3.8

Information provided

  Men

N = 190

n = 68

n = 66

n = 56

n =84

n =106

n =81

n =109

    Not enough

13.2

13.2

9.1

17.9

14.3

12.3

12.4

13.8

    Just enough

77.4

76.5

78.8

76.8

70.2

83.0

76.5

78.0

    Too much

2.6

2.9

4.6

0.0

4.8

0.9

1.2

3.7

    Didn’t read

6.8

7.4

7.6

5.4

10.7

3.8

9.9

4.6

  Women

N = 193

n = 59

n = 67

n = 67

n =92

n =101

n =87

n =106

    Not enough

11.6

10.5

9.0

15.4

11.2

12.0

7.1

15.4

    Just enough

77.8

79.0

79.1

75.4

77.5

78.0

81.2

75.0

    Too much

1.1

0.0

3.0

0.0

1.1

1.0

1.2

1.0

    Didn’t read

9.5

10.5

9.0

9.2

10.1

9.0

10.6

8.7

Prepared respondent for questions in the survey

  Men

N = 190

n = 68

n = 66

n = 56

n =84

n =106

n =81

n =109

    Not at all

5.8

5.9

4.6

7.1

7.1

4.7

7.4

4.6

    A little bit

25.8

20.6

25.8

32.1

25.0

26.4

24.7

26.6

    Somewhat

30.5

41.2

27.3

21.4

30.0

31.1

33.3

28.4

    Very

31.1

26.5

34.9

32.1

25.6

33.0

24.7

35.8

    Didn’t read

6.8

5.9

7.6

7.1

9.5

4.7

9.9

4.6

  Women

N = 193

n = 59

n = 67

n = 67

n =92

n =101

n =87

n =106

    Not at all

5.8

6.9

4.5

6.3

5.6

6.1

3.5

7.8

    A little bit

16.9

20.7

13.4

17.2

14.4

19.2

11.6

21.4

    Somewhat

37.0

41.4

32.8

37.5

38.9

35.4

39.5

35.0

    Very

32.3

22.4

40.3

32.8

33.3

31.3

36.1

29.1

    Didn’t read

7.9

8.6

9.0

6.3

7.8

8.1

9.3

6.8

  1. Results are reported as column percentages. Column percentages may not add to 100% secondary to rounding.
  2. OEF/OIF/OND = Operation Enduring Freedom, Operation Iraqi Freedom, Operation New Dawn.