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Table 1 Distribution of men randomized to each of the six modes of allocation

From: Effects of pre-notification, invitation length, questionnaire length and reminder on participation rate: a quasi-randomised controlled trial

Study Arm

Pre-notification

Invitation

Questionnaire

Reminder

N

1.

Yes

Short

Short

Yes

3575

2.

Yes

Long

Short

Yes

3601

3.

Yes

Short

Short

No

6130

4.

Yes

Short

Long

No

4835

5.

No

Short

Long

No

4956

6.

No

Short

Short

No

5037

Total

28,134