Description of Whitehall II participants and buildings studied
| 44 buildings studied 4052 participants | |||
|---|---|---|---|
| 29 buildings where environmental monitoring took place | 15 buildings where no monitoring took place | ||
| 18 buildings where more detailed field work took place | 11 buildings where less detailed field work took place | 15 buildings | |
| 180 workstations | 109 workstations | ||
| 2523 participants | 792 participants | 737 participants | |
| Measured by questionnaire | |||
| How close is desk to window? | Y | Y | Y |
| How many people in room? | Y | Y | Y |
| Is room carpeted? | Y | Y | Y |
| Control over lights? | Y | Y | Y |
| Control over heating? | Y | Y | Y |
| Able to open and close windows? | Y | Y | Y |
| Measured by field workers | |||
| Air velocity | Y | Y | |
| CO2 | Y | Y | |
| Lighting level | Y | Y | |
| Radiant temperature | Y | Y | |
| Dry bulb temperature | Y | Y | |
| Relative humidity | Y | Y | |
| Noise level | Y | Y | |
| Airborne fungi | Y | ||
| Airborne bacteria | Y | ||
| Dustmites | Y | ||
| Inhalable dust | Y | ||
| Volatile organic compounds | Y | ||
| Mean (SD) symptom score | 2.50 (0.36) | 2.35 (0.29) | 2.10 (0.39) |
| Mean (SD) age in years | 49.2 (1.5) | 49.1 (1.1) | 49.4 (1.5) |
| % Top employment grades | 42.2 | 38.6 | 34.7 |
| % Bottom employment grades | 15.6 | 21.6 | 17.9 |
| % Male | 71.7 | 61.6 | 67.9 |