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. 2011 Mar;72(2):259–269. doi: 10.15288/jsad.2011.72.259

Table 3.

Multilevel linear regression for men's alcohol intake per occasion (logarithmic transformation)

Final main effects and interactions model
Variable Null model param. Indiv.-level model param. Indiv.-level control model param. Full main effects model param. Main effects param. Interaction x Parental Roleparam.
Constant 1.054*** 0.952*** 1.812*** 0.916*** 0.860***
Level 1
 Circumstance
  Party 0.495*** 0.404*** 0.110
  A get-together 0.316*** 0.475*** −0.233*
  Daily-life circumstances Ref. Ref. Ref.
  Other circumstances 0.320*** 0.354** −0.051
 Meal
  During a meal Ref. Ref.
  Not during a meal −0.078 −0.080
 Moment
  Weekend 0.185*** 0.179***
  Weekdays Ref. Ref.
 Location
  Your home 0.207** 0.206**
  Someone else's home 0.056 0.060
  Restaurant Ref. Ref.
  Bar/disco/nightclub 0.278*** 0.275***
 Group size
  Alone −0.174* −0.177*
  Dyad Ref. Ref.
  3–5 people 0.068 0.069
  6–10 people 0.190* 0.186*
  >10 people 0.353*** 0.344***
 Marital role
  Not married 0.030 0.035 0.042
  Married Ref. Ref. Ref.
Level 2
 Age −0.016*** −0.009** −0.009**
 Education level −0.065*** −0.053** −0.052**
 Parental role
  Nonparent 0.150* 0.075 0.056 0.129
  Parent Ref. Ref. Ref. Ref.
Random part
 σ2ε, Level 1 0.247 0.387 0.248 0.192 0.190
 σ2μ, Level 2 0.391 0.247 0.332 0.309 0.305
Statistics
 -2-log likelihood 1,933.295 1,929.403 1,886.806 1,704.353 1,694.545
 χ2 3.892 46.489 228.942 238.750
df 1 4 16 19
P <.05 <.0001 <.0001 <.0001
R2 of Level 1 variables 1% 9% 21% 22%
R2 of Level 2 variables 1% 12% 21% 22%

Notes: Indiv. = individual; param. = parameter; ref. = reference.

*

p ≤ .05;

**

p ≤ .01;

***

p ≤ .001.