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Table 2 Odds Ratios (ORs) and 95 % confidence intervals of participation among private and public schools according to selected school characteristics, Kupol study, Sweden 2013

From: School environment and mental health in early adolescence - a longitudinal study in Sweden (KUPOL)

Characteristic

Private school (N = 131)

Public school (N = 404)

All schools (N = 535)

County

   

 Stockholm

1

1

1

 Other

1.02 (0.45, 2.29)

1.57 (0.90, 2.72)

1.15 (0.74, 1.77)

Number of students per teacher

1.04 (0.89, 1.21)

1.01 (0.90, 1.13)

1.06 (0.97, 1.15)

Percentage of teachers with University degree

0.995 (0.970, 1.021)

1.001 (0.969, 1.034)

0.981 (0.964, 0.999)*

Proficiency score for students in the 9th grade in 2014

1.004 (0.987, 1.022)

0.998 (0.986, 1.009)

1.007 (0.998, 1.015)

Number of students at school

0.998 (0.996, 1.001)

1.000 (0.999, 1.001)

0.999 (0.998, 1.000)

Average number of students per grade

0.986 (0.974, 0.999)*

1.003 (0.996, 1.010)

0.996 (0.990, 1.002)

Percentage of students with foreign background

0.970 (0.942, 0.999)*

0.988 (0.973, 1.003)

0.983 (0970, 0.997)*

Percentage of students with parents with university education

1.007 (0.979, 1.035)

0.995 (0.978, 1.013)

1.009 (0.996, 1.022)

Percentage of teachers with University degree

   

 High (>87)

0.39 (0.10, 1.48)

1.11 (0.55, 2.23)

0.68 (0.40, 1.17)

 Medium (78.5–87)

1.67 (0.67, 4.14)

1.02 (0.50, 2.07)

0.86 (0.51, 1.45)

 Low (<78.5)

1

1

1

Number of students at school

   

 High (>432)

0.78 (0.31, 1.94)

1.11 (0.55, 2.23)

0.83 (0.49, 1.42)

 Medium (279–432)

0.53 (0.19, 1.42)

1.33 (0.67, 2.62)

0.86 (0.51, 1.46)

 Low (<279)

1

1

1

Number of students at school per grade

   

 High (>78.4)

0.24 (0.06, 0.87)*

1.80 (0.89, 3.65)

0.89 (0.52, 1.51)

 Medium (47.1–78.4)

1.29 (0.53, 3.13)

1.18 (0.56, 2.49)

0.90 (0.53, 1.53)

 Low (<47.1)

1

1

1

Percentage of parents with foreign background

   

 High (>24)

0.54 (0.19, 1.52)

0.45 (0.22, 0.91)*

0.48 (0.27, 0.86)*

 Medium (12–24)

0.96 (0.36, 2.54)

0.59 (0.30, 1.10)

0.67 (0.40, 1.14)

 Low (<12)

1

1

1

Percentage of parents with higher education

   

 High (>61)

0.57 (0.24, 1.36)

0.67 (0.31, 1.45)

0.90 (0.53, 1.52)

 Medium (44–61)

1

1

1

 Low (<44)

-

0.96 (0.52, 1.75)

0.68 (0.39, 1.17)

  1. *p < 0.05