Skip to main content

Table 5 Crude and adjusted associations for current asthma i.e. Asthma Definition [2] by physical activity categorised (0-7+ hours per week), odds ratio and 95% confidence interval

From: Associations of physical activity with childhood asthma, a population study based on the WHO - health behaviour in school-aged children survey

 

Boys

Girls

“Current Asthma” (%, n, total)

(7.0, 160, 2295)

(7.2, 173, 2418)

PA (all groups) (n)

2323

2448

0 h/wk. (%, n)

9.3, 216

11.2, 275

 Crude OR (95% CI)a

0.45 (0.20; 1.03)P = 0.060

0.81 (0.41; 1.57)P = 0.528

 Adjusted OR (95% CI)b

0.27 (0.12; 0.60)P = 0.002

0.56 (0.28; 1.14)P = 0.108

0.5 h/wk. (%, n)

5.6, 129

6.3, 153

 Crude OR (95% CI)a

0.76 (0.33; 1.78)P = 0.529

0.52 (0.21; 1.32)P = 0.171

 Adjusted OR (95% CI)b

0.48 (0.20; 1.16)P = 0.102

0.32 (0.11; 0.94)P = 0.039

1 h/wk. (%, n)

9.6, 223

15.6, 382

 Crude OR (95% CI)a

0.77 (0.40; 1.46)P = 0.417

0.63 (0.31; 1.27)P = 0.198

 Adjusted OR (95% CI)b

0.55 (0.28; 1.06)P = 0.073

0.52 (0.26; 1.01)P = 0.055

2–3 h/wk. (%, n)

28.6, 664

33.5, 819

 Crude OR (95% CI)a

0.99 (0.62; 1.58)P = 0.981

0.91 (0.51; 1.63)P = 0.747

 Adjusted OR (95% CI)b

0.76 (0.46; 1.27)P = 0.299

0.82 (0.46; 1.46)P = 0.496

4–6 h/wk. (%, n)

27.2, 631

22.4, 549

 Crude OR (95% CI)a

1.34 (0.83; 2.15)P = 0.231

0.85 (0.44; 1.64)P = 0.631

 Adjusted OR (95% CI)b

1.21 (0.72; 2.03)P = 0.479

0.77 (0.39; 1.51)P = 0.444

7+ h/wk. (%, n)

19.8, 460

11.0, 270

Ref

1.00

1.00

P linear trend

= 0.007

= 0.229

  1. HBSC Health Behaviour in School-aged Children, H Hour/s, Mod Moderate, Ref Reference category, WHO World Health Organization, Wk Week
  2. aUnivariate analysis i.e. crude effect of PA (n boys: 2277; n girls: 2397)
  3. bMultivariate analysis i.e. “full confounder adjustment model” (n boys: 2265; n girls: 2319)
  4. Adjustments (male: Grade, self-rated health; female: Grade, self-rated health, menarche)
  5. P: Chi2