Table 1

Monitor tests and subsequent outcome measures during the 10-week study period

Timing	Action	Outcomes
Day 0	Initial monitor screening check	Proportion of inhalers that passed/failed initial screen for 10-week period ▸ Proportion of inhalers that failed due to the battery test ▸ Proportion of inhalers that failed due to failed accuracy* in detection of actuations Usability of Smartinhaler Connection Centre and SmartinhalerLive website
On two occasions each week	Low use actuations†	Accuracy* in detection of 20 episodes of low use per monitor (1600 actuations in total)
On three occasions during study period	High use actuations‡	Accuracy* in detection of three episodes of high use per monitor (960 actuations in total)
Day 21	Within study monitor screening check§	Proportion of inhalers that passed/failed within study monitor check for 10-week period ▸ Proportion of inhalers that failed due to the battery test ▸ Proportion of inhalers that failed due to failed accuracy* in detection of actuations Usability of Smartinhaler Connection Centre and SmartinhalerLive website
Day 70	Final data upload and battery test	▸ Proportion of inhalers with green battery check ▸ Usability of Smartinhaler Connection Centre and SmartinhalerLive website

*Accuracy is determined by actuations correctly detected by the monitor and a lack of spurious actuations.
†Two sets of two actuations performed in the same day.
‡Two sets of eight actuations performed in the same day.
§Performed after actuations for that day (if any), and in half of the monitors only (monitors 1–10).