TABLE 1.
Characteristics of the study sample (Corona Immunitas, Switzerland, 2020–2021).
| Characteristics | Overall | ZH | TI | SG | GR |
|---|---|---|---|---|---|
| n = 2,534 | n = 1,650 | n = 640 | n = 110 | n = 134 | |
| Sex. Girls | 1,306 (51.5) | 856 (51.9) | 313 (48.9) | 61 (55.5) | 76 (56.7) |
| Age | |||||
| 5–9 y | 879 (34.7) | 539 (32.7) | 236 (36.9) | 51 (46.4) | 53 (39.6) |
| 10–13 y | 807 (31.8) | 596 (36.1) | 146 (22.8) | 26 (23.6) | 39 (29.1) |
| 14–16 y | 848 (33.5) | 515 (31.2) | 258 (40.3) | 33 (30.0) | 42 (31.3) |
| BMI | |||||
| Underweight | 111 (4.5) | 70 (4.3) | 35 (5.6) | 1 (1.0) | 5 (4.0) |
| Normal weight | 1994 (80.0) | 1,308 (79.7) | 486 (77.6) | 88 (88.0) | 112 (88.9) |
| Overweight | 389 (15.6) | 264 (16.1) | 105 (16.8) | 11 (11.0) | 9 (7.1) |
| Parental nationality | |||||
| Swiss | 2,214 (87.6) | 1,439 (87.6) | 553 (86.4) | 100 (90.9) | 122 (91.0) |
| Non-Swiss | 312 (12.4) | 203 (12.4) | 87 (13.6) | 10 (9.1) | 12 (9.0) |
| Parental education | |||||
| High | 1871 (75.3) | 1,274 (78.1) | 452 (73.5) | 69 (63.3) | 76 (58.5) |
| Low/Medium | 615 (24.7) | 358 (21.9) | 163 (26.5) | 40 (36.7) | 54 (41.5) |
Data are n (%). Some percentages do not add up to 100% because of rounding. Some data were missing for BMI (40, 1.6%), parental nationality (8, 0.3%) and parental education (48, 1.9%). There were no missing data for sex and age.
BMI, body mass index; GR, Graubünden; SG, St. Gallen; TI, Ticino; y, years; ZH, Zurich.