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Table 1 Cumulative response rate to Japanese dental questionnaire using the TDM

From: Evaluation of the Total Design Method in a survey of Japanese dentists

  1st Mailing Follow-up Card 2nd Mailing 3rd Mailing
Response rate 18.0 % 21.2% 10.7% 7.6%
  (86/478) (83/392) (33/309) (21/276)
Cumulative   35.4% 42.3% 46.7%
response rate   (169/478) (202/478) (223/478)