Table 1.

Sample characteristics of practices and GPs.

	Male GPs		Female GPs
	Mean or proportion	SD	Mean or proportion	SD	t or χ2
Part-time contract	0.069		0.462		392.237a
Hours worked per week if full-time	49.547	10.312	43.163	10.986	9.427a
Hours worked per week if part-time	34.083	12.441	29.165	7.784	3.430a
Hours on call per weekc if full-time	14.863	14.149	12.688	12.136	2.660a
Hours on call per weekc if part-time	8.163	7.679	7.599	6.998	0.587
Decades of experience	2.299	0.699	2.007	0.705	8.420a
Non-white	0.162		0.117		6.580b
Non-UK qualified	0.124		0.089		4.939b
No partner	0.043		0.102		574.326a,d
Partner does not work	0.231		0.065
Partner works part-time	0.508		0.086
Partner works full-time	0.218		0.746
Number of children under 18 years
0	0.328		0.325		6.659e
1	0.159		0.138
2	0.296		0.350
≥3	0.217		0.187
Salaried	0.030		0.020		1.630
Proportion of female GPs in practice	0.304	0.190	0.503	0.195	-20.786a
Practice list size ('000s)	8.924	4.416	8.634	4.120	1.387
Practice list size per WTE GP ('000s)	2.028	0.488	1.969	0.474	2.493b
Age/sex adjustment	22.410	0.918	22.272	0.924	3.021a
Nursing home adjustment	25.008	24.225	15.213	15.581	10.458a
Additional needs adjustment	96.720	10.997	96.670	10.960	0.092
Dispensing practice	0.194		0.169		1.685
PMS practice	0.340		0.322		0.575
n	1216		615

^aP<0.01.

^bP<0.05.

^cBased on 1132, 331, 84, and 284 respondents for male full-time, female full-time, male part-time, and female part-time GPs.

^dχ² for difference in partner type distributions.

^eχ² for differences in distribution of number of children. SD = standard deviation. WTE = whole time equivalent.