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
| 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) |
*p < 0.05