| Methods |
Randomised controlled trial with concurrent eligible patients outside of the trial. The non‐RCT patients were not in the trial because they refused randomisation. Cardiac surgery patients. RCT usual care lost two (7%) patients to follow up, non‐RCT usual care lost three (19%) patients to follow up. |
| Data |
Characteristics of the non‐randomised patients compared to RCT patients who received the same treatment. RCT usual care patients were on average 69 (51 to 82) years, 23 men and 7 women. Non‐RCT usual care patients were on average 62 (46 to 81) years, 13 men and 2 women. |
| Comparisons |
Two RCT arms, both arms were compared with non‐randomised patients who received similar treatment. Experimental: forced air warming. Control: usual care with warm blankets and overhead heat lamps. |
| Outcomes |
Outcomes were assessed in all patients. Patients were followed for 3 years. Main outcome was postoperative temperature at 6 hours. |
| Notes |
The two experimental treatments were not significantly different. |
