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Table 1 Participant characteristics in the COVIMOD survey waves one to four compared to the POLYMOD survey

From: Individual social contact data and population mobility data as early markers of SARS-CoV-2 transmission dynamics during the first wave in Germany—an analysis based on the COVIMOD study

  POLYMOD COVIMOD
Wave 1 Wave 2 Wave 3 Wave 4
30/04 to 06/05/2020 14/05 to 21/05/2020 28/05 to 04/06/2020 11/06 to 22/06/2020
N Percent N Percent N Percent N Percent N Percent
1341 1560 1356 1081 1890
Age category
 0–4 89 6.9 46 2.9 36 2.7 21 1.9 56 3.0
 5–9 92 7.1 48 3.1 41 3.0 30 2.8 62 3.3
 10–14 110 8.5 73 4.7 63 4.7 45 4.2 87 4.6
 15–19 121 9.3 95 6.1 66 4.9 45 4.2 108 5.7
 20–24 117 9.0 83 5.3 60 4.4 28 2.6 109 5.8
 25–34 132 10.2 173 11.1 148 10.9 96 8.9 219 11.6
 35–44 156 12.0 137 8.8 124 9.2 91 8.4 164 8.7
 45–54 184 14.2 235 15.1 209 15.4 174 16.1 275 14.6
 55–64 160 12.4 265 17.0 244 18.0 237 21.9 321 17.0
 65–69 74 5.7 270 17.3 245 18.1 199 18.4 313 16.6
 70–74 33 2.5 89 5.7 73 5.4 79 7.3 118 6.2
 75–79 14 1.1 35 2.2 34 2.5 29 2.7 48 2.5
 80+ 13 1.0 11 0.7 11 0.8 7 0.6 10 0.5
 Missing 46 0 2 0 0
Sex of participants
 Female 722 55.4 748 48.1 638 47.1 536 49.6 901 47.8
 Male 581 44.6 806 51.9 717 52.9 544 50.4 985 52.2
 Missing 38 6 1 1 4
Household size
 1 250 18.6 232 14.9 256 18.9 268 24.8 487 25.8
 2 411 30.6 412 26.4 351 25.9 270 25.0 439 23.2
 3 339 25.3 514 32.9 447 33.0 343 31.7 544 28.8
 4 or more 341 25.4 402 25.8 302 22.3 200 18.5 420 22.2
Weekday for which contacts were reported
 Monday 227 17.2 50 3.2 60 4.4 128 11.8 642 34.0
 Tuesday 237 18.0 63 4.0 89 6.6 143 13.2 246 13.0
 Wednesday 222 16.8 54 3.5 293 21.6 87 8.0 172 9.1
 Thursday 179 13.6 914 58.6 613 45.2 489 45.2 320 16.9
 Friday 186 14.1 144 9.2 117 8.6 132 12.2 196 10.4
 Saturday 152 11.5 88 5.6 63 4.6 66 6.1 81 4.3
 Sunday 117 8.9 247 15.8 121 8.9 36 3.3 233 12.3
 Missing 21 0 0 0 0
  1. Missing in COVIMOD included participants who preferred not to answer the question