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Table 7 Further estimates of β2 from repeated attempts modelling

From: An exploration of the missing data mechanism in an Internet based smoking cessation trial

Covariates included

Participants included

β2

Smoking related

All

0.176 (0.228)

Non-Smoking related

All

0.258 (0.217)

None

All

0.245 (0.220)

All

Younger (36 and under)

-0.013 (0.606)

All

Older (37 and over)

0.333 (0.258)

All (except sex)

Men

-0.302 (0.738)

All (except sex)

Women

0.359 (0.240)

All

Those who receive 5 calls or less

0.296 (0.165)

All plus the email attempt depends on the number of failed telephone calls

All

0.217 (0.221)

  1. Estimates of β 2 are shown, with standard errors in parentheses, when omitting particular combinations of covariates and participants.