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Table 2 Logistic multilevel results for health complaints

From: Is being a “small fish in a big pond” bad for students´ psychosomatic health? A multilevel study on the role of class-level school performance

  Model 1: Empty model Model 2: Individual variables Model 3: Model 2 + school performance at class-level Model 4: Cross-level interaction
OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
Individual variables
 Intercept 0.29*** (0.27–0.33) 0.11*** (0.09–0.14) 0.11*** (0.09–0.14) 0.11*** (0.09–0.14)
Gender (Ref.: Boys)
 Girls   2.39*** (2.08–2.75) 2.39*** (2.08–2.75) 2.39*** (2.08–2.75)
Age (centered)   1.16*** (1.11–1.22) 1.17*** (1.11–1.23) 1.16** (1.10–1.22)
Individual PSP (Ref.: very good/good) average/below average   1.74*** (1.52–2.00) 1.75*** (1.51–2.03) 1.75*** (1.52–2.03)
Family affluence (Ref.: high)
 medium   0.96
(0.83–1.11)
0.96
(0.83–1.11)
0.96
(0.83–1.11)
 low   1.09
(0.88–1.34)
1.09
(0.88–1.34)
1.09
(0.88–1.34)
Migration background (Ref.: no)
 One-sided   1.44*** (1.16–1.78) 1.44*** (1.16–1.78) 1.44*** (1.16–1.79)
 Two-sided   1.30*** (1.09–1.56) 1.30*** (1.09–1.56) 1.31*** (1.09–1.57)
Class-level variable
 Proportion of students with very good/good school PSP in class (centered)    1.04 (0.67–1.59) 1.31 (0.41–1.32)
Cross-level interaction
 Proportion of students with very good/good PSP in class (centered) x individual school performance (Ref.: very good/good)
  x average/below average individual PSP     1.91*
(1.01-4.01)
School-level variable
 School type (Ref.: high track)   1.24** 1.24** 1.25**
  Other school types   (1.04–1.48) (1.04–1.48) (1.05–1.49)
Variance in intercept (between classes) 0.212*** 0.110*** 0.110*** 0.108***
Variance in intercept (between schools) 0.037 0.050 0.050 0.049
ICC (Class) 0.059 = 5.9% 0.032 = 3.2% 0.032 = 3.2% 0.031 = 3.1%
ICC (school) 0.011 = 1.1% 0.015 = 1.5% 0.015 = 1.5% 0.014 = 1.4%
  1. The class-level variable “proportion of students with very good/good school performance in class” (in %) has been centered around the Grand mean. PSP=Perceived School Performance
  2. *p < 0.050
  3. **p < 0.010
  4. ***p < 0.001