Test and analytics-excluded accounts, plus active partner-access accounts other than guest passes, are excluded. Each outcome has its own respondent group; missing and declined answers are excluded from that outcome.
*1 Symptom severity: The first submitted 0–10 severity score is the baseline. High severity means 7–10. We use the first submitted check-in on or after completed session 10 and within 14 days. Every included completion had a full 14-day observation window. 40 of 52 eligible high-severity members had matched follow-up data; 34 reported a lower score. The 29% result is the change in the group’s average severity, rather than the percentage of members who improved. Session 10 is an app milestone, not a fixed number of days.
*2 Care use: 67 members answered both baseline and 30-day follow-up visit questions. Baseline covers the prior 90 days and is divided by three; follow-up covers the prior 30 days. Visit ranges use representative values, with “4 or more” set to 4. The percentage uses unrounded group averages; chart labels are rounded. These are symptom-related urgent care and ER visits, rather than all healthcare use.
*3 Spending: 17 members answered both baseline and 90-day follow-up spending questions. Dollar ranges use representative values and the same monthly conversion. Top ranges are capped at their lower bound. These are estimates, rather than verified receipts or total savings for all members. At 30 days, the separate matched group (n=60) averaged $389 at baseline and $394 at follow-up. The 90-day result is preliminary and based on a small group.
*4 Helpfulness: One session-10 response per member. 90 rated Nervana “very helpful” or “somewhat helpful”; another 6 reported a specific benefit in the same session. Together, that is 96/105 (91%). The remaining respondents reported “too early to tell” (8) or “not helpful” (1).