Group	Percent of Cases in 2nd Questionnaire Mailing	Percent of Cases Sent to CATI Follow-Up	Mean Number Per Case Phone Attempts
Treatment (N=6,187)	57.7	32.9	10.8
Control (N=6,209)	58.0	33.6	11.1
Overall (N=12,392)	57.8	33.3	11.2