Table 3.
Univariable, multivariable and multivariable with interaction linear regressions for symptoms of anxietya
| 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 | 0.14 (0.03)*** | 0.11 (0.03)*** | 0.11 (0.03)*** |
| Other | 0.27 (0.08)*** | 0.15 (0.09) | 0.15 (0.09) |
| Week of completion | |||
| 1 (reference group) | Reference | Reference | Reference |
| 2 | −0.13 (0.07) | −0.13 (0.07) | −0.13 (0.07) |
| 3 | −0.05 (0.07) | −0.00 (0.07) | −0.00 (0.07) |
| 4 | −0.08 (0.06) | −0.06 (0.07) | −0.06 (0.07) |
| 5 | −0.10 (0.07) | −0.06 (0.07) | −0.06 (0.07) |
| 6 | −0.18 (0.07)** | −0.09 (0.07) | −0.10 (0.07) |
| 7 | −0.10 (0.07) | −0.07 (0.07) | −0.06 (0.07) |
| 8 | −0.10 (0.06) | −0.07 (0.07) | −0.06 (0.07) |
| 9 | −0.09 (0.07) | −0.06 (0.07) | −0.06 (0.07) |
| 10 | −0.06 (0.06) | −0.01 (0.07) | −0.03 (0.07) |
| 11 | −0.07 (0.07) | −0.02 (0.06) | −0.02 (0.07) |
| 12 | −0.06 (0.06) | −0.01 (0.07) | −0.02 (0.07) |
| 13 | −0.09 (0.07) | −0.10 (0.07) | −0.01 (0.07) |
| Survey type | |||
| Initial survey (reference group) | Reference | Reference | Reference |
| Hard to reach with telephone | −0.10 (0.04)** | −0.05 (0.04) | −0.05 (0.04) |
| Hard to reach without telephone | −0.05 (0.07) | −0.02 (0.06) | −0.02 (0.07) |
| History of depression | 0.24 (0.03)*** | 0.15 (0.03)*** | 0.15 (0.03)*** |
| History of anxiety | 0.34 (0.03)*** | 0.26 (0.04)*** | 0.27 (0.04)*** |
| Knows someone in Vancouver who tested positive for COVID-19 | 0.13 (0.05)** | 0.11 (0.05)* | 0.39 (0.26) |
| Ethnicity | |||
| White (reference group) | Reference | Reference | Reference |
| First Nations, Inuit or Metis | 0.01 (0.08) | 0.01 (0.07) | −0.01 (0.08) |
| Chinese | −0.06 (0.03)* | −0.03 (0.03) | −0.02 (0.04) |
| Non-Indigenous/Chinese visible minority | −0.03 (0.03) | −0.01 (0.03) | −0.01 (0.03) |
| Gender×knowing someone who tested positive for COVID-19 in Vancouver interaction | |||
| Male×yes (reference group) | Reference | Reference | Reference |
| Female×yes | – | – | −0.20 (0.09)* |
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.