Variable | Referral rate, % | UOR (95% CI) | P-value | AOR (95% CI) | P-value |
---|---|---|---|---|---|
Sex | 0.008 | 0.007 | |||
Male | 8.6 (1884/21821) | RG | RG | ||
Female | 11.2 (1341/11987) | 1.33 (1.08 to 1.65) | 1.37 (1.09 to 1.72) | ||
Years since registration as doctor in UK | 0.010 | 0.27 | |||
0–9 | 12.4 (434/3491) | 1.38 (1.05 to 1.81) | 1.20 (0.89 to 1.62) | ||
10–19 | 9.4 (1159/12363) | 1.00 (0.79 to 1.27) | 0.95 (0.76 to 1.21) | ||
20–29 | 9.4 (1344/14371) | RG | RG | ||
≥30 | 8.0 (288/3583) | 0.85 (0.63 to 1.13) | 0.88 (0.69 to 1.12) | ||
Number of out-of-hours face-to-face | |||||
contacts over 3 years | 0.34 | 0.77 | |||
20–149 | 10.7 (448/4203) | 1.18 (0.95 to 1.47) | 1.07 (0.86 to 1.32) | ||
150–399 | 9.2 (1771/19267) | RG | RG | ||
≥400 | 9.7 (1006/10338) | 1.06 (0.82 to 1.38) | 0.95 (0.73 to 1.24) | ||
Employment status | 0.042 | 0.30 | |||
Registrar | 14.9 (37/248) | 1.73 (1.09 to 2.76) | 1.45 (0.90 to 2.34) | ||
Locum | 10.6 (762/7196) | 1.17 (0.92 to 1.48) | 0.96 (0.72 to 1.29) | ||
Practice-based | 9.2 (2426/26364) | RG | RG | ||
Time of day of out-of-hours contact | <0.001 | <0.001 | |||
Day (7am–7pm) | 8.0 (1377/17247) | RG | RG | ||
Evening (7–11 pm) | 10.5 (1098/10419) | 1.36 (1.23 to 1.50) | 1.37(1.25 to 1.50) | ||
Night (11pm–7am) | 12.2 (750/6142) | 1.60 (1.30 to 1.98) | 1.51 (1.13 to 2.02) | ||
Place of out-of-hours contact | <0.001 | <0.001 | |||
Surgery | 8.1 (2087/25649) | RG | RG | ||
Home visit | 13.9 (1138/8159) | 1.83 (1.62 to 2.07) | 1.76 (1.54 to 2.00) |
Referral rates have been calculated as a percentage of the total number of contacts in the 3-year period. Odds ratios have been calculated using STATA (version 7) with the cluster subcommand to use robust standard errors. UOR is calculated using just the variable in question and the constant term in the model, the AOR controls for the sex of the GP, the time and the place of the contact. AOR = adjusted odds ratio. RG = reference group. UOR = unadjusted odds ratio.