| Full CIS | Respiratory pilot |
---|---|---|
Study visits | ||
 Observations, n | 1,352,979 | 14,939 |
 Positive for SARS-CoV-2, n (%) | 32,937 (2.4) | 354 (2.4) |
  Void, n (%) | 25,729 (1.9) | 275 (1.8) |
 Positive for RSV, n (%) |  | 181 (1.2) |
 Positive for Influenza A/B, n (%) |  | 130 (0.9) |
 Symptoms consistent with ILI-WHO, n (%) | 34,317 (2.5) | 367 (2.5) |
  Missing, n (%) | 26,936 (2.0) | 354 (2.4) |
 Symptoms consistent with ILI-ECDC, n (%) | 194,986 (14.4) | 2145 (14.4) |
  Missing, n (%) | 26,936 (2.0) | 354 (2.4) |
Participants | ||
 Unique participants, n | 359,186 | 14,664 |
 Unique households, n | 185,359 | 12,554 |
 Observations, median (IQR) | 4 (3–4) | 1 (1–1) |
 Country, n (%) | ||
  England | 301,818 (84.0) | 11,748 (80.1) |
  Scotland | 27,625 (7.7) | 1390 (9.5) |
  Wales | 19,137 (5.3) | 795 (5.4) |
  Northern Ireland | 10,606 (3.0) | 731 (5.0) |
 Sex, n (%) | ||
  Female | 192,782 (53.7) | 7911 (53.9) |
  Male | 166,404 (46.3) | 6753 (46.1) |
 Age group, n (%) | ||
  02–6SY | 18,484 (5.2) | 789 (5.4) |
  7SY–11SY | 21,010 (5.9) | 928 (6.3) |
  12SY–34 | 41,396 (11.5) | 1846 (12.6) |
  35–49 | 67,492 (18.8) | 2976 (20.3) |
  50–64 | 96,229 (26.8) | 4080 (27.8) |
  65 +  | 114,575 (31.9) | 4045 (27.6) |
 Age, median (IQR) | 55 (37–68) | 52 (35–66) |
 Household size | ||
  1 | 49,334 (13.7) | 2151 (14.7) |
  2 | 149,214 (41.5) | 5621 (38.3) |
  3 or more | 160,638 (44.7) | 6892 (47.0) |
 Ethnicity | ||
  White | 332,821 (92.7) | 13,402 (91.4) |
  Non-white | 26,365 (7.3) | 1262 (8.6) |
 Ever worked patient-facing health care, n (%) | 15,447 (4.3) | 640 (4.4) |
 Ever reported long-term health concerns, n (%) | 86,931 (24.2) | 3322 (22.7) |
 Ever vaccinated against SARS-CoV-2, n (%) | 334,013 (93.0) | 13,586 (92.6) |
    > 18 years | 306,503/310,296 (98.8) | 12,308/12,466 (98.7) |
 Self-reported influenza vaccination | ||
  Both 22/23 and 21/22 | 215,621 (60.0) | 5694 (38.8) |
  Only 22/23 | 10,739 (3.0) | 269 (1.8) |
  Only 21/22 | 56,002 (15.6) | 5225 (35.6) |
  Neither | 76,824 (21.4) | 3476 (23.7) |