Table 2. Primary Outcome of Additional Resource Use and Its Components.
| Outcome | Participants, No. (%) (N = 367) | Absolute risk difference (95% CI) | P value | Adjusted risk difference (95% CI)a | P value | |
|---|---|---|---|---|---|---|
| Minimal suction group (n = 184) | Enhanced suction group (n = 183) | |||||
| Additional resource useb | 68 (37.0) | 48 (26.2) | 0.11 (0.01 to 0.20) | .03 | 0.12 (0.02 to 0.21) | .01 |
| Unscheduled visits by 72 h | 47 (25.5) | 40 (21.9) | 0.04 (−0.05 to 0.12) | .46 | 0.04 (−0.04 to 0.13) | .32 |
| Unassigned device use for lack of feeding or breathing improvement | 33 (17.9) | 11 (6.0) | 0.12 (0.05 to 0.18) | <.001 | 0.12 (0.05 to 0.19) | <.001 |
| Per-protocol analysis of unscheduled visits, No./total No. (%)c | 15/76 (19.7) | 22/106 (20.8) | −0.01 (−0.13 to 0.11) | >.99 | −0.01 (−0.11 to 0.10) | .87 |
Post hoc adjustment was made for stratification at randomization for age group, with site as a random effect.
Defined as either an unscheduled visit to any health care facility for bronchiolitis within 72 hours of ED discharge or the use of additional suctioning devices for perceived feeding and/or breathing problems.
This was a sensitivity analysis with patients using the assigned device only.