Table 1

Baseline characteristics of the population analysed

VariablesNeurology group (n=128)MRI group (n=95)P value
Age, years, mean (SD)38.4 (14.1)40.0 (14.6)0.514
Gender, Female, n (%)103 (81)65 (68)0.039
Ethnicity0.079
 Asian13 (10)6 (6.3)
 Black40 (31)17 (18)
 White68 (53)60 (63)
 Mixed5 (3.9)8 (8.4)
 Other2 (1.6)4 (4.2)
Qualification, n (%)0.565
 Advanced work or PhD3 (2.3)4 (4.2)
 Master’s degree15 (12)12 (13)
 Bachelor’s degree31 (24)29 (31)
 High school57 (45)33 (35)
 Did not finish high school8 (6.3)10 (11)
 Prefer not to answer14 (11)7 (7.4)
Employment, n (%)0.839
 Employee in full-time job (30 hours or more a week)50 (39)36 (38)
 Employee in part-time job (under 30 hours a week)18 (14)18 (19)
 Self-employed, full or part time12 (9.4)8 (8.4)
 Full-time education at school, college or university16 (13)9 (9.5)
 Doing something else2 (1.6)2 (2.1)
 Permanently sick/disabled8 (6.3)6 (6.3)
 Looking after the home4 (3.1)6 (6.3)
 Unemployed and available for work12 (9.4)6 (6.3)
 Wholly retired from work4 (3.1)4 (4.2)
 Prefer not to answer2 (1.6)0 (0)
Presence of mental health condition, n (%)22 (17)11 (12)0.243
Number of active health problems: mean (SD)2.0 (1.5)1.8 (1.4)0.277
Number of headache triggers: mean (SD)2.1 (1.8)1.8 (1.4)0.378
Self-reported questionnaires
 EQ-5D-5L, mean utility (SD)0.809 (0.182)0.830 (0.195)0.097
 EQ-5D-5L, mean score (SD)64 (19)71 (20)0.005
 HIT-6, mean score (SD)65 (5.3)63 (7.3)0.006
 MIDAS, mean score (SD)58 (54)45 (45)0.075
 MIDAS, mean headache days (SD)52 (32)43 (31)0.038
 MIDAS, mean pain score (SD)6.9 (1.8)6.9 (1.9)0.778
Resource use in the 12 months prior to recruitment
 GP appointments, mean (SD)3.7 (2.9)2.4 (1.5)<0.001
 All NHS events, mean (SD)4.3 (3.7)2.5 (1.5)<0.001
  • EQ-5D-5L, 5-level EQ-5D; GP, general practitioner; HIT-6, Headache Impact Test; MIDAS, Migraine Disability Assessment Scale; NHS, National Health Service.