Table 1 Descriptive statistics of dissemination area variables (n = 3147) and their correlations with noise levels
From: Socioeconomic status and environmental noise exposure in Montreal, Canada
Variables (by dissemination area) | Mean | Median | Standard deviation | 1st percentile | 99th percentile | Pearson correlation with mean LAeq24h | |
|---|---|---|---|---|---|---|---|
Coefficient | p value | ||||||
Proportion of households with 1 person | 34.7 | 35.3 | 14.8 | 4.3 | 68.2 | 0.259 | <0.0001 |
Unemployment rate | 8.8 | 7.7 | 6.3 | 0 | 28.6 | 0.232 | <0.0001 |
Proportion of people over age 25 without a diploma | 20.8 | 19.0 | 12.4 | 0 | 50.0 | 0.311 | <0.0001 |
Proportion of people below the low income boundary | 21.8 | 20.0 | 14.7 | 0 | 61.8 | 0.360 | <0.0001 |
Median household income* | 47 735 | 40 420 | 26 263 | 17 006 | 147 114 | −0.426 | <0.0001 |
Proportion of people who spend over 30% of their income on housing | 21.2 | 20.5 | 14.3 | 0 | 57.4 | 0.378 | <0.0001 |
Material deprivation index | −0.003 | −0.004 | 0.048 | −0.116 | 0.112 | 0.380 | <0.0001 |
Social deprivation index | 0.014 | 0.020 | 0.043 | −0.097 | 0.100 | 0.337 | <0.0001 |