Table 1:
Type of data | Participants | Monitoring Sample N. of participants (N. of measurements) †‡ |
Sample with home monitoring and questionnaire data |
---|---|---|---|
Questionnaires | |||
Home Information Questionnaire (HIQ) | 2054 | 287 | |
Respiratory Disease and Smoke Exposure Questionnaire (RDSE) | 2912 | 283 | |
Questionnaires for validation | |||
Daily Activity Questionnaire | 217 | 209 | |
Home Inspection Form | 216 | 209 | |
Measurements | |||
Indoor PM2.5 (μg/m3) | 201 (270) | 194 (263) | |
Outdoor PM2.5 (μg/m3) | 197 (271) | 190 (264) | |
Indoor NO2 (ppb) | 216 (294) | 209 (287) | |
Outdoor NO2 (ppb) | 216 (294) | 209 (287) | |
Indoor NOx (ppb) | 216 (294) | 209 (287) | |
Outdoor NOx (ppb) | 216 (294) | 209 (287) | |
Indoor nicotine (μg/m3) | 205 (274) | 198 (265) | |
Outdoor RH | 209 (287) | ||
Outdoor temperature | 209 (287) |
Note:
- not including participants with missing measurements;
- Participants from Ann Arbor, San Francisco, and Salt Lake City centers had up to two sets of home monitoring measurements.
Abbreviations: SPIROMICS - Subpopulations and Intermediate Outcome Measures in COPD Study; PM2.5 – particulate matters with diameter less than 2.5 µm; NO2 - nitrogen dioxide; NOx - oxides of nitrogen; RH- relative humidity.