Table 3

Factors associated with duration of GP consultations

	Change in duration (s)	P value	95% CI
Female gender (male=reference)	8.29	0.000	6.03 to 10.55
Ethnic group (white=reference)
Asian	4.06	0.237	−2.67 to 10.78
Chinese	−6.40	0.603	−30.49 to 17.69
Black	−5.70	0.200	−14.40 to 3.01
Mixed/other	4.30	0.289	−3.64 to 12.24
Unknown	−11.01	0.000	−13.51 to −8.50
IMD (first quintile=reference)
Second quintile	1.14	0.537	−2.48 to 4.76
Third quintile	−2.41	0.230	−6.35 to 1.53
Fourth quintile	−3.64	0.089	−7.83 to 0.56
Fifth quintile (most deprived)	−5.11	0.034	−9.84 to −0.37
Unknown	−11.36	0.058	−23.12 to 0.39
Smoking status (non-smoker=reference)
Current smoker	−2.36	0.147	−5.54 to 0.83
Ex-smoker	0.11	0.943	−2.91 to 3.13
Unknown	18.65	0.000	14.56 to 22.73
Age group (0–14 years=reference)
15–24 years	55.70	0.000	50.11 to 61.29
25–44 years	83.66	0.000	78.70 to 88.63
45–64 years	89.81	0.000	84.75 to 94.87
65–74 years	65.82	0.000	60.23 to 71.40
75+ years	58.43	0.000	52.94 to 63.92
Telephone consultation (face-to-face=reference)	−308.71	0.000	−311.65 to −305.77
Training practice (no=reference)
Yes	44.33	0.000	19.87 to 68.78
Unknown	121.58	0.148	−43.02 to 286.17
GP consultation rate (centred, per 1000 per 10 000 person-years)	−3.31	0.000	−4.24 to −2.37
Mean duration	472.42	0.000	455.41 to 489.43