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Table 5 Backward stepwise logistic regression model

From: Lifestyle behaviors and home and school environment in association with sick building syndrome among elementary school children: a cross-sectional study

 

Variables

Reference

Mucosal symptoms

Skin symptoms

General symptoms

OR (95% CI)

OR (95% CI)

OR (95% CI)

Demographic data

Any allergies

No

6.80 (4.98, 9.44)**

4.74 (2.82, 8.34)**

−

Lifestyle behaviors

Eating breakfast (No/sometimes)

Always

−

−

2.51 (0.54, 8.19)

Significant faddiness

None/some

1.50 (1.05, 2.10)*

−

−

Daily TV watching (≥ 3 h)

≤ 2 h

−

−

−

Constipation/bowel movement (Once in 3 days)

Once per 1–2 days

−

−

3.17 (1.31, 7.11)*

Insufficient sleep (No/sometimes)

Always

−

−

−

Feeling refreshed after sleep (No/sometimes)

Always

1.52 (1.15, 2.02)*

1.84 (1.16, 2.91)*

−

Deep sleep (No/sometimes)

Always

1.40 (0.96, 2.01)

 

4.39 (1.94, 9.57)**

Lifestyle index (0–7)

Continuous

−

−

−

Home building characteristics

Number of inhabitants

Continuous

−

−

−

Building age

Continuous

−

−

−

Multifamily home

Single family home

−

−

−

Steel and concrete structure

Wooden structure

−

−

−

Newly/renovation within 1 year

No

−

−

−

Environmental tobacco smoke

No

−

−

−

Ventilation

Yes

−

−

−

Furry pets in the house

No

−

−

−

Wall-to-wall carpet

No

−

−

−

Dampness index

Continuous

1.35 (1.20, 1.52)***

1.35 (1.11, 1.65)*

1.50 (1.06, 2.09)*

Living near heavy traffic

No

 

−

−

  1. Any allergies were defined positive if a child experience at least one of ISAAC symptoms; wheeze, rhinoconjunctivitis or eczema. All variables of lifestyle behavior and home characteristics introduced into model at same time and adjusted for gender, grade, school, and parental history of allergies
  2. Lifestyle index (0–7): score of individual lifestyle behaviors ranging from 0 (healthiest) to 7 (unhealthy or least healthy)
  3. *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001