Table 1.

Timing of Survey Completions

	Frequency	Percent	Cumulative Percent
Before initial postcard reminder	169	27.8%	27.8%
Between initial reminder and second postcard reminder	270	44.3	72.1
After second reminder, during telephone follow-up	163	26.8	98.9
Missing/undetermined	7	1.1	100%
Total	609	100%