Table 1.
Characteristics of the four groups.
| TA | MD | RD | MDRD | All groups | |
|---|---|---|---|---|---|
| N | 158 | 69 | 46 | 87 | 360 |
| Mean age (years) | 26.47 (14.66) | 26.80 (12.69) | 19.22 (10.96) | 27.22 (12.99) | 25.79 (13.65) |
| n Female | 77 | 35 | 16 | 47 | 175 |
| % Female | 48.73% | 50.72% | 34.78% | 54.02% | 48.61% |
| WRAT3 Arithmetic | 57.82 (19.38) | 13.62 (7.34) | 50.26 (17.05) | 10.34 (7.66) | 36.84 (26.81) |
| WRAT3 Reading Mean Score | 63.42 (19.24) | 53.00 (17.18) | 12.09 (8.20) | 10.14 (8.11) | 41.99 (28.77) |
| Estimated IQ | 109.61 (14.28) | 97.75 (13.45) | 100.80 (16.42) | 88.74 (13.57) | 101.17 (16.51) |
| Education Rating | 3.23 (1.41) | 3.10 (1.29) | 2.43 (1.19) | 3.15 (1.22) | 3.08 (1.31) |
| Occupation Rating | 3.65 (1.30) | 3.69 (1.53) | 3.67 (0.87) | 3.20 (1.44) | 3.54 (1.37) |
| Median Incomea Rating | 3.52 (1.63) | 3.41 (1.36) | 3.50 (1.34) | 3.49 (1.28) | 3.49 (1.48) |
Numbers in parentheses represent one standard deviation from the mean. Underlined numbers are mean percentile scores that are within the 25th percentile on the WRAT3 Arithmetic or WRAT3 Reading subtest.
a
The distribution of income relative to the period studied was relatively stable in Vancouver and comparable to other big cities (>1M) in Canada (i.e., Toronto, Montreal, Ottawa, Calgary). Although the distribution was positively skewed around the mean (60–70 K in CND$) relative to other cities, because we do not intend to generalize our results to the entire Canada, what is most relevant is that there were no differences in income distribution between our four groups.