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Table 3 Conditional logistic regression analyses predicting drinking, accessing alcohol without supervision and engaging in risky drinking practices

From: A cross-sectional survey of compliance with national guidance for alcohol consumption by children: measuring risk factors, protective factors and social norms for excessive and unsupervised drinking

   All Drinkers only
    Unsupervised consumption and access Excess drinking
   Drink alcohol Unsupervised inside drinking Outside drinking (streets, parks, shops) Self-purchase Take from parents Proxy purchase Frequent drinking§ Heavy drinking§
n (% yes) 11,879 (82.3%) 9,720 (57.4%) 9,720 (29.8%) 9,549 (25.5%) 9,549 (8.5%) 9,549 (11.9%) 9,766 (22.4%) 9,664 (54.7%)
   AOR (95%CI) AOR (95%CI) AOR (95%CI) AOR (95%CI) AOR (95%CI) AOR (95%CI) AOR (95%CI) AOR (95%CI)
Age 15 Ref* Ref* ns Ref*** ns Ref* Ref* Ref***
  16 1.13(1.02-1.25) 1.11(1.01-1.21)   1.51(1.37-1.67)   0.83(0.73-0.96) 1.12(1.01-1.24) 1.29 (1.18-1.41)
Sex Female Ref*** Ref*** Ref*** ns Ref** Ref*** Ref*** Ref*
  Male 0.55(0.49-0.61) 0.69(0.63-0.75) 1.23(1.11-1.36)   0.80(0.68-0.93) 1.36(1.18-1.56) 1.43(1.28-1.59) 1.11(1.02-1.22)
Deprivation IMD^ score < = 10 (affluent) Ref*** Ref** ns ns Ref** Ref** Ref** ns
  >10-20 0.92(0.78-1.08) 0.88(0.78-1.00)    0.79(0.64-0.98) 1.04(0.84-1.30) 0.93(0.79-1.08)  
  >20-30 0.73(0.61-0.88) 0.89(0.76-1.04)    0.87(0.674-1.12) 1.13(0.88-1.45) 1.05(0.87-1.25)  
  >30-40 0.65(0.54-0.78) 0.75(0.63-0.88)    0.53(0.39-0.73) 1.28(0.99-1.66) 0.90(0.74-1.09)  
  >40 (poor) 0.57(0.48-0.66) 0.81(0.71-0.92)    0.87(0.70-1.09) 1.50(1.18-1.81) 1.20(1.03-1.41)  
Expendable income > = £10 Ref*** Ref*** Ref*** Ref*** ns Ref* Ref*** Ref***
  £11-20 1.53(1.36-1.73) 1.50(1.34-1.67) 1.28(1.13-1.45) 1.45(1.27-1.65)   1.14(0.96-1.36) 1.32(1.16-1.50) 1.49(1.34-1.67)
  £21-30 2.04(1.70-2.44) 1.45(1.27-1.67) 1.23(1.05-1.44) 2.34(2.01-2.73)   1.17(0.94-1.46) 1.63(1.39-1.92) 1.82(1.58-2.10)
  >£30 2.94(2.47-3.49) 1.63(1.45-1.85) 1.55(1.36-1.77) 3.07(2.69-3.50)   1.35(1.13-1.63) 2.05(1.78-2.35) 2.43(2.14-2.76)
Hobby No Ref** ns Ref *** ns ns ns Ref*** Ref***
/Sport Yes 1.17(1.05-1.30)   0.78(0.70-0.86)     0.77(0.68-0.86) 0.76(0.69-0.84)
Parents No   Ref* Ref*** Ref*** ns Ref*** Ref*** Ref***
Provide Yes   0.91(0.83-0.99) 0.44(0.39-0.48) 0.48(0.44-0.53)   0.37(0.31-0.43) 0.79(0.71-0.88) 0.59(0.54-0.65)
Peer No   Ref*** Ref** ns Ref** ns Ref** ns
Pressure Yes   1.57(1.41-1.74) 1.20(1.05-1.32)   1.25(1.06-1.47)   0.81(0.72-0.92)  
Boredom No   Ref*** Ref*** Ref*** Ref*** Ref*** Ref*** Ref***
  Yes   1.31(1.18-1.46) 3.72(3.34-4.15) 1.50(1.34-1.67) 1.94(1.65-2.27) 3.33(2.90-3.82) 2.68(2.39-3.00) 2.94(2.63-3.29)
  1. Logistic regression techniques used a backwards conditional model. This method also controlled for local authority of school (n = 21). Local Authority AORs have not been displayed due to space but were significant for all outcome measures. § drinking frequently = >1 session/week; drinking heavily = drink ≥5 drinks/session ≥1 per month. ^IMD = Index of multiple deprivation. AOR = Adjusted Odds Ratio. Ref = Reference category. 95% CI = 95% confidence intervals. ns = Not significant. Reported P values are * <0.05 ** <0.01 *** <0.001. Comparator groups for dependent variables in unsupervised consumption and access are, respectively, drinkers who do not: typically drink unsupervised inside; typically drink outside (in streets, parks and shops); buy their own alcohol; take alcohol from their parents without permission or; proxy purchase. For frequent drinking the reference group is drinkers who do not drink >1 session/week and for heavy drinking, drinkers who do not drink ≥5 drinks/session ≥1 per month.