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Table 4 Univariate and multivariate analyses of determinants in questionnaire 1

From: Prevention of tick bites: an evaluation of a smartphone app

Questionnaire 1
     Univariate analysis Multivariate analysis
(corrected for gender, having children aged 0–17 years at home, and having experience with a tick bite)
Variables, % (n/N) Total
(N = 554)
Non-app user group
(N = 311)
App user group
(N = 243)
Odds ratio 95% CI P value Odds ratio 95% CI P value Transformed P value
% (n/N) % (n/N) % (n/N)
Knowledge (scale range 1–8)
 Low (1–4) 23.5 (130/554) 32.2 (100/311) 12.3 (30/243) Ref. Ref.  
 High (5–8) 76.5 (424/554) 67.8 (211/311) 87.7 (213/243) 3.37 2.15–5.28 <.001 3.21 2.02–5.09 < 0.001 .01
Perceived severity (scale range 1–7)
 Negative (1–4) 53.8 (298/554) 52.1 (162/311) 56.0 (136/243) Ref. Ref.  
 Positive (5–7) 46.2 (256/554) 47.9 (149/311) 44.0 (107/243) 0.86 0.61–1.20 .36 0.94 0.67–1.34 0.743 .74
Perceived susceptibility 1 (scale range 1–7)
 Negative (1–4) 48.0 (266/554) 46.6 (145/311) 49.8 (121/243) Ref. Ref.  
 Positive (5–7) 52.0 (288/554) 53.4 (166/311) 50.2 (122/243) 0.88 0.63–1.23 .46 0.77 0.54–1.09 0.142 .19
Perceived susceptibility 2 (scale range 1–7)
 Negative (1–4) 82.7 (458/554) 80.1 (249/311) 86.0 (209/243) Ref. Ref.  
 Positive (5–7) 17.3 (96/554) 19.9 (62/311) 14.0 (34/243) 0.65 0.41–1.03 .07 0.67 0.42–1.07 0.092 .15
Self-efficacy (scale range 1–7)
 Negative (1–4) 7.6 (42/554) 10.3 (32/311) 4.1 (10/243) Ref. Ref.  
 Positive (5–7) 92.4 (512/554) 89.7 (279/311) 95.9 (233/243) 2.67 1.29–5.55 .01 2.56 1.22–5.37 0.013 .05
Response efficacy (scale range 1–7)
 Negative (1–4) 12.3 (68/554) 14.8 (46/311) 9.1 (22/243) Ref. Ref.  
 Positive (5–7) 87.7 (486/554) 85.2 (265/311) 90.9 (221/243) 1.74 1.02–2.99 .04 1.65 0.96–2.86 0.072 .14
Intention (scale range 1–7)
 Negative (1–4) 6.5 (36/554) 8.7 (27/311) 3.7 (9/243) Ref. Ref.  
 Positive (5–7) 93.5 (518/554) 91.3 (284/311) 96.3 (234/243) 2.47 1.14–5.36 .02 2.67 1.22–5.85 0.014 .04