Table 3.

Results of Rating the Passive Wristband Sampler, Mobile Spirometer, and Cellular Phone

West Eugene, OR	Average (range)	n
Please rate how comfortable it is to wear the wristband	8.6 (3–10)	17
Rate the ease of use of the spirometer	7.7 (3–10)	16
	Yes/No	n
Would you wear a wristband for a week?	16/1	17
Would you carry this phone for a week?	15/2	17

Carroll County, OH	Average (range)	n
Please rate how comfortable it is to wear the wristband	8.9 (8–10)	7
Rate the ease of use of the spirometer	7.0 (5–8)	7
	Yes/No	n
Would you wear a wristband for a week?	7/0	7
Would you carry this phone for a week?	6/0	6

Focus group participants were asked to rate the passive wristband sampler (PWS) and the mobile spirometer using a Likert scale. When asked to rate the comfort of the wristband, 1 = very uncomfortable, while 10 = very comfortable. When rating the ease of use of the spirometer, 1 = very difficult, 10 = very easy. Participants were also asked to assess the use of the ELF and ELF Tracker in their daily lives, answering if they would wear/carry the wristband and cell phone continuously, as discussed in the pilot project.