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Table 8 Multivariate results (ATT) based on the dose-response analysis (base category = unaware and unexposed to SKY)

From: Evaluation of a multimedia youth anti-smoking and girls’ empowerment campaign: SKY Girls Ghana

Outcome

Outcome indicator

Exposed to 4+

Exposed to 1–3

Unexposed but aware

Marginal Effect

Std Err

Marginal Effect

Std Err

Marginal Effect

Std Err

1. Girls are part of supportive ‘sistahood’

Perception of sources of social support outside the family

0.016

−0.801

0.016

− 0.039

− 0.019

− 0.04

Perception that friends support their decisions

0.094

−0.083

0.009

−0.041

0.047

−0.051

Perception of acceptance when saying no to friends

0.012

−0.826

−0.017

− 0.034

− 0.066

− 0.064

Perception of pressure to smoke shisha (−)

− 0.071

− 0.213

− 0.017

− 0.034

0.054

− 0.048

Perception of pressure to smoke cigarettes (−)

− 0.096

− 0.106

− 0.028

− 0.04

0.038

− 0.059

2. Girls connect, share, explore issues

Held conversations with friends about smoking

0.087

− 0.128

0.041

− 0.039

0.002

− 0.061

Held conversations with adults about smoking

0.124*

−0.048

− 0.053

− 0.055

− 0.021

− 0.078

3. Girls express themselves through choices they make

Perception of being able to make choices for themselves

0.293*

−0.014

0.130*

−0.051

0.095

−0.088

4. Girls model refusal skills

Perception of confidence when saying no to friends

0.234**

− 0.006

−0.047

− 0.047

− 0.181

− 0.128

5. Reduced aspiration to smoke

Agreement with beliefs that favor smoking shishaa

−0.014

− 0.811

0

− 0.037

− 0.069

−0.074

Agreement with beliefs that favor smoking cigarettesa

0.07

−0.171

0.034

−0.039

0.008

−0.057

Agreement with the idea that peers can justify smoking shishaa

−0.128*

− 0.016

− 0.0950**

− 0.036

0.033

−0.055

Agreement with the idea that peers can justify smoking cigarettesa

−0.045

− 0.413

− 0.025

−0.038

0.063

−0.056

Perception that most peers smoke tobacco (−)

0.033

−0.58

0.019

−0.032

0.056

−0.064

Perception that most peers smoke shisha (−)

0.038

−0.378

0.058

−0.037

0.019

−0.056

  1. Note: 18 girls were deleted from the analysis due to uncommon support
  2. aEffects on each of the independent components of the index are presented in the Appendix
  3. ** p < 0.01, * p < 0.05