Table 7 Comparison of prevalence of weekly building-related symptoms between winter and summer

Tension, irritability, or nervousness

1.36 (1.15–1.61)^**

1.30 (1.09–1.55)^**

Tired or strained eyes

1.31 (1.10–1.57)^**

1.27 (1.05–1.53)^*

Dry, itching, or irritated eyes

1.06 (0.87–1.28)

1.01 (0.82–1.23)

Feeling depressed

1.36 (1.10–1.68)^**

1.31 (1.05–1.63)^*

Unusual tiredness, fatigue, or drowsiness

1.38 (1.11–1.72)^**

1.36 (1.08–1.70)^**

Sore or dry throat

0.64 (0.50–0.81)^**

0.56 (0.43–0.72)^**

Headache

1.13 (0.82–1.56)

1.06 (0.76–1.47)

Difficulty remembering things or concentration

1.52 (1.03–2.23)^*

1.46 (0.98–2.17)

Sneezing

1.01 (0.69–1.47)

0.97 (0.65–1.43)

Cough

0.80 (0.52–1.23)

0.73 (0.47–1.14)

Dry or flushed facial skin

0.37 (0.25–0.55)^**

0.33 (0.22–0.49)^**

Stuffy or runny nose, or sinus congestion

0.68 (0.44–1.05)

0.67 (0.43–1.04)

Hands dry, Itching, red skin

0.78 (0.49–1.22)

0.68 (0.42–1.08)

Dizziness or lightheadedness

1.48 (0.87–2.53)

1.38 (0.80–2.36)

Nausea or upset stomach

1.27 (0.76–2.11)

1.10 (0.65–1.84)

Scaling/itching scalp or ears

0.77 (0.45–1.31)

0.68 (0.39–1.16)

Shortness of breath

1.84 (0.80–4.20)

1.58 (0.69–3.64)

Chest tightness

0.97 (0.48–1.95)

0.84 (0.40–1.75)

Wheezing

1.10 (0.39–3.14)

1.14 (0.38–3.40)