Table 4.
Influence of community noise annoyance on students’ cumulative GPAa for students domiciled inside versus outside the university
| Type of community noise | Mantel–Haenszel weighted ORb (95% CI) | Chi-square | P value |
|---|---|---|---|
| Traffic | 1.098 (0.827–1.457) | 0.325 | 0.504 |
| Construction | 1.164 (0.870–1.557) | 0.902 | 0.022 |
| Recreation | 1.056 (0.791–1.410) | 0.088 | 0.190 |
| Advertising | 1.049 (0.782–1.407) | 0.061 | 0.478 |
a
Cumulative GPA data were dichotomized as “low” (cumulative GPA ≤ 2.39) or “high” (cumulative GPA ≥ 3.18) according to class interval. bMantel–Haenszel weighted odds ratio was used because of stratification, as the community noise annoyance variable was trichotomized (not at all + slightly; moderately; very + extremely).