Timeline for environmental monitoring of the SPIROMICS Air Study from 2013 to 2016
| 2013 | 2014 | 2015 | 2016 | ||||||||||||
| Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clinical data and questionnaires | |||||||||||||||
| SPIROMICS enrolment (n=2982) | |||||||||||||||
| Visit 2 (n=2350) | |||||||||||||||
| Visit 3 (n=1492) | |||||||||||||||
| Visit 4 (n=894) | |||||||||||||||
| HIQ administered (n=1938)* | |||||||||||||||
| Environmental monitoring | |||||||||||||||
| Baltimore | |||||||||||||||
| LA | |||||||||||||||
| SLC | SLC | ||||||||||||||
| SF | SF | ||||||||||||||
| NYC | |||||||||||||||
| AA | AA | ||||||||||||||
| W-S | |||||||||||||||
Sites: AA (Ann Arbor, Michigan); LA (Los Angeles, California); NYC (New York City, New York); SF (San Francisco, California); SLC (Salt Lake City, Utah); W-S (Winston-Salem, North Carolina).
*HIQ administered once to each participant by in-person or telephone interview. 1936 is the total number administered as of 1 September 2016.
HIQ, Home Information Questionnaire; SPIROMICS, Subpopulations and Intermediate Outcome Measures in COPD Study.