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Table 6 Stepwise logistic regression of socio-demographic, normative social influence, social image, access to Toombak and ever Toombak use by intention to use Toombak among secondary school students in Khartoum State

From: Socio-cognitive correlates of intention to use Toombak: a cross-sectional study among students (13–16 years) in Khartoum State, Sudan

Characteristics Intention to use Toombak OR (95% CI)
Step 1a Step 2b Step 3c Step 4d
Age group
 < 15 years 1 1 1 1
 ≥ 15 years 2.04 (0.91-4.60) 1.86 (0.80-4.28) 1.62 (0.69-3.83) 1.47 (0.59-3.63)
Gender
 Female 1 1 1 1
 Male 2.45 (1.04–5.78)* 1.88 (0.75–4.68) 1.94 (0.76–4.91) 0.74 (0.25–0.2.20)
Social influence
 NO   1 1 1
 Yes   2.64 (0.56–12.51) 2.19 (0.45–10.54) 2.63 (0.52–13.21)
Social image
 Negative image   1 1 1
 Positive image   3.39 (1.47–7.76)** 3.16 (1.36–7.35)* 2.83 (1.18–6.83)*
Toombak access
 Direct access    1 1
 Indirect access    0.32 (0.12–0.83)* 0.38 (0.14–1.05)
Ever Toombak use
 Ever user     1
 Non-users     0.13 (0.04–0.39)**
  1. aR2 =0.07, bR2 = 0.16, c R = 0.19, dR2 =0.30, *p ≤ 0.05, **p ≤ 0.001