Table 3.
Summary of the outcome reporting for the assessment of conversational agents (CAs).a
| Study | Weight loss | Diet | Physical activity | User experience | Adherence | Adverse events | Reported items (n=6), n (%) |
| Wright et al [40], 2013 | 0 | 0 | 1 | 1 | 1 | NRb | 5 (83) |
| Stein, and Brooks [20], 2017 | 1 | 1 | NR | 1 | 1 | NR | 4 (67) |
| Brust-Renck et al [38], 2017 | NR | 1 | 1 | NR | NR | NR | 2 (33) |
| Kocielnik et al [42], 2018 | NR | NR | 0 | NR | 1 | NR | 2 (33) |
| Stephens et al [39], 2019 | NR | NR | 0 | 1 | 1 | NR | 3 (50) |
| Maher et al [41], 2020 | 1 | 1 | 1 | 1 | 1 | 1 | 6 (100) |
| Piao et al [43], 2020 | NR | NR | 1 | NR | 1 | NR | 2 (33) |
| To et al [44], 2021 | NR | NR | 1 | 1 | 1 | NR | 3 (50) |
aPositive or mixed outcomes were coded as 1, and neutral or negative outcomes were coded as 0.
bNR: not reported.