Undertriage* | Overtriage† | |||
N=32 | N=24 | |||
% (N) | RR (95% CI) | % (N) | RR (95% CI) | |
Patient characteristics | ||||
Age groups (in years) | ||||
30–59 (n=272) | 6.3 (17) | 0.55 (0.29 to 1.07) | 7.4 (20) | 2.44 (0.85 to 7.01) |
>60 (n=133) | 11.3 (15) | 1 | 3.0 (4) | 1 |
Sex | ||||
Male (n=163) | 8.6 (14) | 1 | 6.8 (11) | 1 |
Female (n=242) | 7.4 (18) | 0.87 (0.44 to 1.69) | 5.4 (13) | 0.80 (0.40 to 1.73) |
Call characteristics | ||||
Weekend | ||||
Not weekend (n=208) | 6.7 (14) | 1 | 6.3 (13) | 1 |
Weekend (n=197) | 9.1 (18) | 1.36 (0.69 to 2.65) | 5.6 (11) | 0.89 (0.41 to 1.95) |
Time of day | ||||
Day or evening (n=314) | 6.4 (20) | 1 | 6.1 (19) | 1 |
Nighttime (n=91) | 13.2 (12) | 2.1 (1.05 to 4.07)* | 5.5 (5) | 0.91 (0.35 to 2.36) |
Triage model | ||||
GP-led triage (n=206) | 10.7 (22) | 1 | 2.4 (5) | 1 |
Nurse-led triage with CDSS (n=199) | 5.0 (10) | 0.47 (0.23 to 0.97)‡ | 10.0 (19) | 3.93 (1.50 to 10.33)‡ |
We excluded 30 calls as assessing accuracy of triage was not possible or not relevant.
*Undertriage: triage decision assessed as clinically relevant undertriage (rated ‘1’ or ‘2’).
†Overtriage: clinically relevant overtriage (rated ‘6’ or ‘7’).
‡Significant difference in RR, using binomial regression analyses; p<0.05: Definitions: Weekend=Friday 16:00 to Monday 8:00 and holidays. Day=8:00 to 16:00, Evening=16:00 to midnight, Night=midnight to 8:00.
CDSS, computerised decision support system; GP, general practitioner.