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Table 3 Relationship between tobacco use, and delusional-like experiences (n = 8,773)

From: The association between delusional-like experiences, and tobacco, alcohol or cannabis use: a nationwide population-based survey

   Any Delusional-like experiences
   Screen items Probe items
A. Tobacco use
  Count
(%)
Model 11
OR4 (95% CI5)
Model 22
OR4 (95% CI5)
Model 11
OR4 (95% CI5)
Model 22
OR4 (95% CI5)
Smoking      
Everyday 1539 (17.97) 1.86 (1.43, 2.43)* 1.39 (1.07, 1.81)* 2.37 (1.65, 3.39)* 1.66 (1.13, 2.44)*
Weekly 302 (4.05) 1.73 (0.99, 3.02) 1.28 (0.67, 2.45) 2.98 (1.09, 8.19)* 2.12 (0.65, 6.91)
Never 6932 (77.98) Reference Reference Reference Reference
B. Age of start of smoking everyday
Very early start (Q1: 6-15 y) 517 (5.78) 2.26 (1.63, 3.13) 1.61 (1.09, 2.36) 2.84 (1.82, 4.45) 1.82 (1.11, 3.00)
Early start (Q2:16-17y) 352 (4.51) 1.77 (1.18, 2.66) 1.42 (0.92, 2.18) 2.45 (1.31, 4.59) 1.78 (0.89, 3.52)
Mid age start (Q3: 18-19y) 307 (3.56) 1.00 (0.59, 1.69) 0.79 (0.47, 1.36) 1.51 (0.69, 3.29) 1.19 (0.55, 2.61)
Late start (Q4: 20y+) 360 (4.10) 1.93 (1.19, 3.12) 1.56 (0.97, 2.51) 1.56 (0.83, 2.94) 1.13 (0.61, 2.12)
Not smoking at all 7234 (82.04) Reference Reference Reference Reference
C. Number of cigarettes or tobacco products per day
Very heavy smoker (Q1: 23-75) 325 (3.97) 2.19 (1.46, 3.28) 1.63 (1.06, 2.51) 2.35 (1.24, 4.44) 1.54 (0.77, 3.09)
Heavy smoker (Q2:16-22) 313 (3.24) 1.76 (1.07, 2.91) 1.25 (0.76, 2.07) 2.71 (1.60, 4.59) 1.77 (1.05, 2.99)
Light smoker (Q3: 11-15) 314 (3.80) 1.65 (1.03, 2.67) 1.33 (0.82, 2.15) 1.72 (0.74, 4.01) 1.25 (0.52, 3.03)
Very light smoker (Q4: < 10) 584 (6.94) 1.68 (1.13, 2.51) 1.32 (0.85, 2.05) 2.06 (1.24, 3.41) 1.52 (0.89, 2.57)
Not smoking at all 7234 (82.04) Reference Reference Reference Reference
  1. 1Model 1 = Adjusted for age and sex; 2Model 2 = Adjusted for age, sex, marital status, migrant status, employment status, educational status, any anxiety disorders, any depressive disorders, physical disorders and 'other' harmful substance use/dependence ('other' harmful substance use/dependence denotes all other drug/alcohol use/dependence); 4OR = Odds Ratio, 5CI = 95% Confidence Interval; *significance: p < 0.01 (shown in bold)