Table 5 Univariate odds ratios of building characteristics for SBS symptoms

Municipal

(vs. prefuctural)

1.61 (0.69–3.76)

0.271

1.38 (0.78–2.43)

0.276

1.95 (0.81–4.72)

0.136

1.51 (0.80–2.87)

0.205

2.28 (0.96–5.41)

0.063

1.69 (1.04–2.75)

0.035

Building age

 ≤9

0.00^a

0.998

0.98 (0.12–7.78)

0.981

0.46 (0.06–3.54)

0.454

0.00^a

0.998

0.00^a

0.998

0.54 (0.12–2.44)

0.425

 10–19

3.12 (0.64–15.3)

0.161

3.12 (0.64–45.3)

0.161

1.46 (0.31–6.94)

0.633

1.86 (0.39–8.91)

0.436

2.52 (0.52–12.2)

0.252

2.03 (0.59–6.98)

0.259

 20–29

0.75 (0.31–1.85)

0.536

0.64 (0.25–1.65)

0.357

1.17 (0.66–2.09)

0.592

1.17 (0.62–2.21)

0.623

0.52 (0.21–1.30)

0.163

0.92 (0.56–1.51)

0.739

 ≥30

Reference

Reference

Reference

Reference

Reference

Reference

Density (n = 474)^b

1.36 (0.39–4.82)

0.63

2.73 (1.17–6.39)

0.019

2.86 (0.88–9.33)

0.082

2.59 (1.02–6.56)

0.044

0.51 (0.13–1.97)

0.328

1.85 (0.89–3.86)

0.099

Dampness indicator

<0.001

 Condensation on the windowpanes (n = 477)

>10^8a

0.997

7.43 (1.18–31.0)

0.006

6.14 (0.82–45.9)

0.077

>10^8a

0.996

6.65 (0.89–49.6)

0.064

6.05 (2.16–17.0)

0.011

 Condensation on the walls and/or closet (n = 470)

1.92 (0.86–4.34)

0.113

2.30 (1.32–4.03)

0.003

2.56 (1.10–5.97)

0.030

2.25 (1.21–4.18)

0.010

1.50 (6.97–3.22)

0.301

2.31 (1.47–3.69)

0.001

 Visible mold in the bathrooms (n = 477)

7.24 (0.97–54.0)

0.054

3.20 (1.25–8.23)

0.016

3.44 (0.80–14.8)

0.097

3.13 (1.10–8.93)

0.033

1.28 (0.47–3.43)

0.631

2.47 (1.23–4.96)

<0.0001

 Visible mold on the window frames, walls, and/or closet (n = 474)

3.17 (1.18–8.51)

0.022

2.48 (1.32–4.65)

0.005

3.01 (1.12–8.13)

0.030

2.83 (1.38–5.84)

0.005

1.55 (0.69–3.49)

0.287

2.50 (1.49–4.21)

<0.001

 Moldy odor (n = 477)

17.3 (2.33–128.9)

0.005

4.61 (2.14–9.95)

<0.0001

3.73 (1.27–11.0)

0.017

4.00 (1.75–9.11)

0.001

3.25 (1.22–8.64)

0.018

3.96 (2.20–7.13)

0.001

 Slow drying of the wet towels in bathrooms (n = 475)

7.45 (1.74–31.9)

0.007

2.50 (1.29–4.85)

0.007

4.72 (1.40–15.9)

0.013

3.66 (1.60–8.35)

0.002

4.02 (1.38–11.7)

0.011

3.07 (1.74–5.39)

<0.0001

 Water leakage during past 5 years (n = 466)

1.99 (0.87–4.60)

0.105

2.97 (1.66–5.32)

<0.0001

1.15 (0.15–2.95)

0.770

2.97 (1.58–5.58)

0.001

3.20 (1.50–6.85)

0.003

2.31 (1.38–3.85)

0.001

 Bad drainage in bathroom (n = 468)

5.99 (2.66–13.5)

<0.0001

4.14 (2.22–7.70)

<0.0001

5.03 (2.22–11.4)

<0.001

5.46 (2.83–10.5)

<0.0001

7.26 (3.31–15.9)

<0.0001

4.13 (2.36–7.24)

<0.001