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Table 1 Background characteristics of the study participants. Odds Ratios (OR), with confidence intervals (CI) on 95% level are shown for univariate associations between self-reported ability to swim 200 m (“yes” or “no”) and each variable

From: What makes children learn how to swim? – health, lifestyle and environmental factors associated with swimming ability among children in the city of Malmö, Sweden

Variable name Not able to swim 200 m (N = 778) Able to swim 200 m (N = 2690) or (95%CI)
Sex, n (%)    0.94 (0.80, 1.10)
 Female 377 (48) 1344 (50)  
 Male 401 (52) 1346 (50)  
Social Prerequisite Index (IQL), n (%)    2.28 (2.08, 2.50)
 very high 71 (9) 781 (29)  
 high 126 (16) 853 (32)  
 low 219 (28) 622 (23)  
 very low 362 (47) 434 (16)  
School-level Deprevation Index (IQL), n (%)    0.52 (0.48, 0.57)
 very low 102 (13) 763 (28)  
 low 100 (13) 752 (28)  
 high 200 (26) 667 (25)  
 very high 376 (48) 508 (19)  
pooled health- and wellness scores devided at 50th precentile    
Activity score, n (%)    1.31 (1.25, 1.36)
 low 483 (62) 1040 (39)  
 high 295 (38) 1650 (61)  
Outdoor time score, n (%)    1.52 (1.41, 1.64)
 low 353 (45) 694 (26)  
 high 425 (55) 1996 (74)  
Eating regularity score, n (%)    1.39 (1.30, 1.49)
 low 441 (57) 1106 (41)  
 high 337 (43) 1584 (59)  
Sleep score, N (%)    1.08 (1.04, 1.13)
 low 456 (59) 1427 (53)  
 High 322 (41) 1263 (47)  
Mental Wellbeing at school, n (%)    1.24 (1.15, 1.31)
 low 410 (53) 1071 (40)  
 high 368 (47) 1619 (60)  
Social relations at school, n (%)    1.17 (1.11, 1.22)
 poor 421 (54) 1159 (43)  
 good 357 (46) 1531 (57)  
Social relations outside school, n (%)    1.32 (1.23, 1.41)
 poor 315 (40) 751 (28)  
 good 463 (60) 1939 (72)  
General Wellbeing score, n (%)    1.07 (1.01, 1.13)
 low 370 (48) 1159 (43)  
 high 408 (52) 1531 (57)  
Self-satisfaction score, n (%)    1.07 (0.99, 1.15)
 low 297 (38) 920 (34)  
 high 481 (62) 1770 (66)  
Physical health, n (%)    1.00 (0.98, 1.02)
 poor 382 (49) 1305 (49)  
 good 396 (51) 1385 (51)  
Working environment at school, n (%)    1.14 (1.11, 1.17)
 poor 500 (64) 1231 (46)  
 good 278 (36) 1459 (54)  
School infrastructure satisfaction, n (%)    1.05 (1.02, 1.08)
 low 364 (47) 1040 (39)  
 high 414 (53) 1650 (61)  
Positivity conserning future, n (%)    1.44 (1.2, 1.64)
 low 324 (42) 824 (31)  
 high 454 (58) 1866 (69)  
Negative emotion score, N (%)    1.03 (0.99, 1.06)
 high 370 (48) 1207 (45)  
 low 408 (52) 1483 (55)