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Table 1 Characteristics of study participants

From: Weather and children’s physical activity; how and why do relationships vary between countries?

  Participant Characteristics. N (% of study)
Genderc Age band Weight statusd
Study Location Months Study Typea N Participantsb N daysb Female 3–5 years 6–12 years 13–18 years Over weight Obese
ALSPAC Bristol, UK Jan-Dec* Long 6613 (28%) 61,101 (38%) 3449 (52%) 0 (0%) 4202 (64%) 2411 (36%) 1094 (17%) 314 (5%)
Ballabeina Aarau, Switzerland Aug-Sep Int 375 (2%) 1496 (1%) 185 (49%) 336 (90%) 39 (10%) 0 (0%) 29 (8%) 14 (4%)
Belgium Pre-School Study Antwerp, Belgium Feb-Mar, Oct-Dec CS 430 (2%) 1303 (1%) 225 (52%) 411 (96%) 19 (4%) 0 (0%) 50 (12%) 56 (13%)
CHAMPS (UK) Stoke-on-Trent, UK Nov-Mar, May CS 529 (2%) 2399 (2%) 257 (49%) 82 (16%) 291 (55%) 156 (29%) 96 (18%) 38 (7%)
CLAN Melbourne, Australia Jul-Dec* Long 1115 (5%) 9426 (6%) 593 (53%) 54 (5%) 812 (73%) 249 (22%) 241 (22%) 100 (9%)
CoSCIS Copenhagen, Denmark Dec-Jun* Int 674 (3%) 3523 (2%) 317 (47%) 4 (1%) 670 (99%) 0 (0%) 78 (12%) 29 (4%)
EYHS Denmark Copenhagen, Denmark Jan-Dec* Long 1365 (6%) 7223 (5%) 755 (55%) 0 (0%) 790 (58%) 575 (42%) 172 (13%) 28 (2%)
EYHS Estonia Tartu, Estonia Aug-May* CS 651 (3%) 2246 (1%) 360 (55%) 0 (0%) 335 (51%) 316 (49%) 55 (8%) 6 (1%)
EYHS Norway Oslo, Norway Feb, Apr-Jun, Oct, Nov CS 248 (1%) 650 (0%) 120 (48%) 0 (0%) 248 (100%) 0 (0%) 22 (9%) 2 (1%)
EYHS Portugal Funchal, Madeira Jan-Jul* Long 748 (3%) 1950 (1%) 388 (52%) 0 (0%) 462 (62%) 286 (38%) 130 (17%) 52 (7%)
HEAPS Melbourne, Australia Feb-Dec* Long 1368 (6%) 8219 (5%) 723 (53%) 276 (20%) 1003 (73%) 89 (7%) 283 (21%) 120 (9%)
Iowa Bone Development Study Des Moines, USA Sep-Nov Long 604 (3%) 7300 (5%) 305 (50%) 75 (12%) 429 (71%) 100 (17%) 95 (16%) 139 (23%)
KISS Aarau, Switzerland Aug-Sep, Nov Int 427 (2%) 2334 (1%) 219 (51%) 0 (0%) 427 (100%) 0 (0%) 48 (11%) 33 (8%)
MAGIC Glasgow, UK Sep-Nov CS 429 (2%) 2080 (1%) 215 (50%) 429 (100%) 0 (0%) 0 (0%) 70 (16%) 17 (4%)
PEACH Bristol, UK Jan-Apr, Jun, Jul, Sep-Dec * Long 1204 (5%) 10,011 (6%) 619 (51%) 0 (0%) 1204 (100%) 0 (0%) 216 (18%) 71 (6%)
SPEEDY Norwich, UK Feb-Jul CS 1977 (8%) 9761 (6%) 1101 (56%) 0 (0%) 1977 (100%) 0 (0%) 358 (18%) 116 (6%)
Project TAAG Columbia (SC), USA Jan-Mar* Int 754 (3%) 4070 (3%) 754 (100%) 0 (0%) 203 (27%) 551 (73%) 164 (22%) 127 (17%)
Minneapolis, USA Jan-Apr*   880 (4%) 5633 (4%) 880 (100%) 0 (0%) 177 (20%) 703 (80%) 159 (18%) 69 (8%)
New Orleans, USA Jan-Apr*   693 (3%) 3907 (2%) 693 (100%) 0 (0%) 200 (29%) 493 (71%) 171 (25%) 136 (20%)
San Diego, USA Jan-Apr*   869 (4%) 5185 (3%) 869 (100%) 0 (0%) 212 (24%) 657 (76%) 193 (22%) 138 (16%)
Tucson, USA Jan-Apr*   653 (3%) 4113 (3%) 653 (100%) 0 (0%) 234 (36%) 419 (64%) 127 (19%) 59 (9%)
Washington DC, USA Jan-May*   845 (4%) 4894 (3%) 845 (100%) 0 (0%) 194 (23%) 651 (77%) 169 (20%) 111 (13%)
All     23,451 (100%) 158,824 (100%) 14,525 (62%) 1667 (7%) 14,128 (60%) 7656 (33%) 4020 (17%) 1775 (8%)
  1. * Study collected valid physical activity data for at least 1/3 of the year (120 days)
  2. aAbbreviations for study type: Long Longitudinal, Int Intervention, CS Cross-sectional
  3. bNumber in individual study, and % contribution to total sample
  4. cref. Male
  5. dref. not overweight or obese (including underweight)