Table 3.
Spearman correlation coefficients among indicators of indoor air quality perceived by workers in underground shopping centers (n = 314)
| Stuffy odor | Unpleasant odor | Pungent odor | Moldy odor | Tobacco smoke odor | Dry air | Humid air | |
|---|---|---|---|---|---|---|---|
| Stuffy odor | 1.00 | ||||||
| Unpleasant odor | 0.67*** | 1.00 | |||||
| Pungent odor | 0.60*** | 0.71*** | 1.00 | ||||
| Moldy odor | 0.42*** | 0.31*** | 0.38*** | 1.00 | |||
| Tobacco smoke odor | 0.23*** | 0.28*** | 0.29*** | 0.12* | 1.00 | ||
| Dry air | 0.19*** | 0.13* | 0.14* | 0.22*** | 0.18** | 1.00 | |
| Humid air | 0.14* | 0.22*** | 0.23*** | 0.15** | 0.07 | 0.23*** | 1.00 |
*P < 0.05; **P < 0.01; ***P < 0.001
Each perceived indoor air quality was categorized into no (code = 0) and yes (code = 1)