Table 4.
Univariable, multivariable and multivariable with interaction linear regressions for symptoms of depressiona
| Predictor | Univariableb | Multivariable no interactionsc | Multivariable with interactionsc |
|---|---|---|---|
| Coefficient (robust s.e.) | Coefficient (robust s.e.) | Coefficient (robust s.e.) | |
| Gender | |||
| Male (reference group) | Reference | Reference | Reference |
| Female | 0.12 (0.03)*** | 0.11 (0.03)*** | 0.11 (0.03)*** |
| Other | 0.30 (0.09)*** | 0.18 (0.09) | 0.18 (0.09) |
| Age, years | |||
| ≤18 (reference group) | Reference | Reference | Reference |
| 19 | 0.04 (0.05) | −0.02 (0.07) | −0.01 (0.07) |
| 20 | −0.04 (0.06) | −0.15 (0.08) | −0.14 (0.08) |
| 21 | −0.02 (0.06) | −0.17* (0.09) | −0.16 (0.09) |
| 22 | 0.06 (0.06) | −0.07 (0.09) | −0.06 (0.09) |
| 23 | −0.04 (0.06) | −0.16 (0.09) | −0.15 (0.09) |
| 24 | −0.00 (0.07) | −0.06 (0.10) | −0.04 (0.10) |
| ≥25 | −0.07 (0.05) | −0.06 (0.09) | −0.05 (0.09) |
| Week of completion | |||
| 1 (reference group) | Reference | Reference | Reference |
| 2 | −0.05 (0.08) | 0.01 (0.07) | 0.01 (0.08) |
| 3 | −0.03 (0.07) | 0.00 (0.07) | −0.00 (0.08) |
| 4 | −0.09 (0.07) | −0.05 (0.07) | −0.06 (0.07) |
| 5 | −0.14 (0.08) | −0.10 (0.08) | −0.10 (0.08) |
| 6 | −0.16 (0.07)* | −0.06 (0.07) | −0.11 (0.08) |
| 7 | −0.10 (0.07) | −0.09 (0.07) | −0.05 (0.07) |
| 8 | −0.12 (0.07) | −0.04 (0.08) | −0.09 (0.08) |
| 9 | −0.07 (0.07) | −0.01 (0.08) | −0.02 (0.08) |
| 10 | −0.09 (0.07) | 0.03 (0.08) | −0.04 (0.08) |
| 11 | −0.05 (0.07) | 0.00 (0.08) | 0.02 (0.08) |
| 12 | −0.04 (0.07) | 0.00 (0.07) | −0.01 (0.08) |
| 13 | −0.05 (0.07) | −0.03 (0.08) | −0.02 (0.08) |
| Survey type | |||
| Initial survey (reference group) | Reference | Reference | Reference |
| Hard to reach with telephone | −0.06 (0.04) | −0.04 (0.04) | −0.04 (0.04) |
| Hard to reach without telephone | −0.04 (0.07) | 0.02 (0.07) | 0.02 (0.07) |
| History of depression | 0.28 (0.03)*** | 0.23 (0.03)*** | 0.23 (0.03)*** |
| History of anxiety | 0.30 (0.03)*** | 0.17 (0.04)*** | 0.19 (0.04)*** |
| Knows someone who tested positive for COVID-19 in Vancouver | 0.11 (0.05)* | 0.06 (0.06) | 0.33 (0.22) |
| Student type | |||
| First-year undergraduate (reference group) | Reference | Reference | Reference |
| Second-year undergraduate | 0.04 (0.05) | 0.08 (0.06) | 0.08 (0.06) |
| Third-year undergraduate | 0.02 (0.05) | 0.10 (0.07) | 0.09 (0.07) |
| Fourth-year undergraduate | 0.04 (0.05) | 0.08 (0.08) | 0.07 (0.08) |
| Graduate | −0.05 (0.04) | −0.02 (0.08) | −0.02 (0.08) |
| Other | −0.17 (0.06)** | −0.09 (0.09) | −0.08 (0.09) |
| Ethnicity | |||
| White (reference group) | Reference | Reference | Reference |
| First Nations, Inuit or Metis | 0.05 (0.09) | 0.02 (0.08) | 0.02 (0.09) |
| Chinese | −0.01 (0.03) | −0.02 (0.04) | −0.01 (0.04) |
| Non-Indigenous/Chinese visible minority | 0.08 (0.03)* | 0.07 (0.03)* | 0.08 (0.04)* |
| Housing type | |||
| Living with parents or other relatives (reference group) | Reference | Reference | Reference |
| Living in own home or apartment (owned or rented) | −0.10 (0.03)** | −0.12 (0.04)** | −0.13 (0.04) |
| Living in a university owned or operated residence or fraternity | −0.09 (0.04)* | −0.08 (0.04) | −0.08 (0.04) |
| Living in a shared house, apartment or flat | −0.04 (0.04) | −0.05 (0.04) | −0.06 (0.04) |
| Other | −0.11 (0.13) | −0.18 (0.13) | −0.19 (0.13) |
a.
Only significant results shown, see complete table in Supplementary Appendix 2.
b.
n = 1388.
c.
n = 1188 (only participants with no missing data were included).
*
P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001.