Table 3

Average response rates with SD for time periods

GroupBaseline≤1 year>1–2 years>2–5 years>5–10 years
All75±22.167±20.961±18.450±16.161±23.0
Cohort97±4.782±7.874±11.561±18.9
Registry72±21.864±21.357±18.547±13.961±23.0
Paper86±19.475±18.671±19.460±22.176±15.3
Web42±8.736±13.44834
Mix71±15.162±18.553±16.043±3.439±0.7
Reminders: 039±6.741±13.355
Reminders: 182±16.574±20.364±20.452±19.661±23.0
Reminders: >176±20.968±18.858±17.847±15.7
  • If there is no SD, the average consists of only one data point.