Table 2.
Baseline structural and functional social relationships and depression
| Baseline social relationships | Number of days during past week on which participant had face-to-face contact with another person for 15 min or more (including someone you live with)? | Score | Median (IQR) | 7 (3, 7) |
| None (0 days per week) | n/N (%) | 10 476/69 875 (15.0) | ||
| Some (1–6 days per week) | n/N (%) | 14 723/69 875 (21.1) | ||
| Daily | n/N (%) | 44 676/69 875 (63.9) | ||
| Number of days during past week on which participant had a phone or video call with another person for 15 min or more? | Score | Median (IQR) | 4 (2, 7) | |
| None (0 days per week) | n/N (%) | 5964/70 074 (8.5) | ||
| Some (1–6 days per week) | n/N (%) | 43 022/70 074 (61.4) | ||
| Daily | n/N (%) | 21 088/70 074 (30.1) | ||
| Perceived social support | Score | Median (IQR) | 4.0 (3.2, 4.5) | |
| Low | n/N (%) | 14 057/68 784 (20.4) | ||
| Medium | n/N (%) | 20 132/68 784 (29.3) | ||
| High | n/N (%) | 34 595/68 784 (50.3) | ||
| Baseline depression | PHQ-9 score | Score | Mean (s.d.) | 7.1 (6.1) |
| Depression caseness (PHQ-9 score ⩾10) | Depressed | n/N (%) | 20 235/69 671 (29.0) | |
| Non-depressed | n/N (%) | 49 436/69 671 (71.0) |
IQR, interquartile range; PHQ-9, Patient Health Questionnaire 9 item version; s.d. = standard deviation.