Table 1.
Number of recorded contacts per participant per day by characteristics, and relative number of contacts
| Variable | Covariate | Participants n (%) | Mean (s.d.) number of reported contacts | Median (Q1-Q3) | Relative number of reported contacts (95% CI) | P value |
|---|---|---|---|---|---|---|
| Sex | Male | 29 (38·7) | 15·8 (10·3) | 14·5 (6·5–22·5) | 1·00 | |
| Female | 46 (61·3) | 16·5 (10·0) | 14 (8·13–23·5) | 1·04 (0·76–1·40) | 0·3296* | |
| Grade | 7 | 30 (40) | 15·3 (10·9) | 10·5 (6·5–21·6) | 1·00 | |
| 8 | 45 (60) | 16·9 (9·6) | 15·5 (9–22·5) | 1·11 (0·83–1·50) | 0·1190* | |
| Household size | 2 | 1 (1·3) | 5·0 (n.a.) | n.a. | 1·00 | |
| 3 | 7 (9·3) | 14·6 (11·7) | 14·5 (5·25–19·3) | 2·91 (0·66–12·92) | ||
| 4 | 29 (38·7) | 14·5 (10·4) | 10 (7–20·5) | 2·90 (0·69–12·18) | ||
| 5 | 22 (29·3) | 17·5 (9·8) | 22·25 (10·6–32·3) | 3·51 (0·83–14·81) | ||
| >5 | 16 (21·3) | 19·1 (9·2) | 16·25 (7·86–22·1) | 3·82 (0·90–16·23) | 0·0613† | |
| Term time | Monday | 17 (22·7) | 21·9 (11·4) | 14·5 (8·5–21·5) | 1·00 | |
| Tuesday | 14 (18·7) | 21·4 (10·6) | 12·5 (9·5–25·9) | 0·98 (0·6–1·54) | ||
| Wednesday | 13 (17·3) | 20·1 (11·1) | 19·5 (9–22·5) | 0·91 (0·58–1·46) | ||
| Thursday | 16 (21·3) | 17·8 (12·9) | 10·75 (6–19·8) | 0·81 (0·52–1·26) | ||
| Friday | 15 (20) | 18·5 (13·0) | 14·5 (6·25–22·3) | 0·84 (0·54–1·32) | 0·7504† | |
| Holiday | Saturday | 39 (52) | 14·2 (11·7) | 14·5 (7–27) | 1·00 | |
| Sunday | 36 (48) | 10·9 (9·5) | 13·75 (8·75–20·5) | 1·30 (0·91–1·87) | 0·2062* | |
| Health status (term time) | 0–4 | 5 (6·7) | 14·9 (7·34) | 17·25 (10·6–20·9) | 1·00 | |
| 5–7 | 34 (45·3) | 16·8 (9·8) | 14 (8·5–23·5) | 1·13 (0·62–2·06) | ||
| 8–10 | 36 (48) | 16·0 (10·8) | 14·5 (6·38–22·5) | 1·07 (0·59–1·95) | 0·7323† | |
| Health status (holiday) | 0–4 | 7 (9·3) | 17·6 (7·1) | 20·5 (16·3–20·5) | 1·00 | |
| 5–7 | 30 (40) | 16·9 (10·0) | 13·75 (9·63–13·8) | 0·96 (0·57–1·61) | ||
| 8–10 | 38 (50·7) | 15·5 (10·7) | 11·25 (6·5–11·3) | 0·88 (0·53–1·46) | 0·4768† | |
| Vaccine | Yes | 13 (17·3) | 15·2 (10·9) | 13 (8–20·5) | 1·00 | |
| No | 62 (82·7) | 16·4 (10·0) | 14·5 (7·25–22·5) | 1·08 (0·74–1·59) | 0·2665* |
CI, Confidence interval; n.a., not available.
*
Wilcoxon signed-rank test.
†
Kruskal–Wallis test.