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Table 2 Participation of parents invited to participate in the HOEPS pilot, by survey instrument and case or control status

From: Effect of survey instrument on participation in a follow-up study: a randomization study of a mailed questionnaire versus a computer-assisted telephone interview

 

MQ

CATI

TOTAL

 

Cases

Controls

Total

Cases

Controls

Total

Eligible

(n = 84)

(n = 87)

(n =171)

(n = 87)

(n = 83)

(n =170)

(n =341)

 

 N (%) 

 N (%) 

 N (%) 

 N (%) 

 N (%) 

 N (%) 

 N (%) 

Mother participateda

73 (86.9)

75 (86.2)

148 (86.6)

65 (74.7)

55(66.3)

120 (70.6)

268 (78.6)

Permission to contact fathera,b

60 (82.2)

51 (68.0)

111 (75.0)

61 (93.9)

42(76.4)

103 (85.8)

214 (79.9)

Father participateda,c

49 (83.1)

43 (87.8)

92 (85.2)

32 (53.3)

23(56.1)

55 (54.5)

147 (70.3)

Overall father participationa,d

49 (58.3)

43 (49.4)

92 (53.8)

32 (36.8)

23(27.7)

55 (32.4)

147 (43.1)

  1. a difference between CATI and MQ was significant (p-value <0.05).
  2. b the denominator for permission rate is the number of mothers who participated.
  3. c among fathers that project staff were given permission to contact.
  4. d among all fathers potentially eligible for participation at the beginning of HOEPS. Fathers were lost to participation when the mother did not participate, when the mother did not give permission to contact the father, when contact information could not be found for the father, and when the father chose not to participate.