% (95% CI)% (95% CI)% (95% CI)% (95% CI)
Sex (female)55 (51 to 59)56 (52 to 59)64 (58 to 69)57 (55 to 60)
Ethnicity (white)92 (90 to 94)89 (86 to 91)88 (84 to 91)90 (89 to 92)
Has long-standing illness (yes)37 (33 to 41)30 (26 to 32)39 (33 to 45)34 (32 to 36)
Taking prescribed medicine (yes)47 (42 to 51)43 (38 to 46)53 (46 to 60)46 (43 to 49)
Employer (full-time or part-time employment)68 (64 to 72)72 (68 to 75)62 (56 to 67)69 (67 to 71)
SES (lower managerial and professional)28 (24 to 32)28 (25 to 31)22 (17 to 27)27 (24 to 29)
Smoking (never)51 (46 to 55)57 (53 to 60)54 (48 to 60)54 (52 to 57)
Consuming five or more portions of FV/day (yes)28 (24 to 32)35 (31 to 38)25 (21 to 31)31 (29 to 33)
Vegetarian (yes)2 (1 to 3)3 (2 to 4)0.7 (0.1 to 2)2 (1 to 3)
Has one child aged between 0 and 4 years15 (12 to 18)13 (10 to 15)12 (8 to 16)13 (12 to 15)
Frequency of drinking alcohol in past 12 months (once or two times in a week or month)45 (40 to 49)48 (44 to 51)50 (44 to 55)47 (45 to 50)
  • BMI, body mass index; FV, fruit and vegetables; LS, long sleepers; NDNS, National Diet and Nutrition Survey; RS, reference sleepers; SES, socioeconomic status; SS, short sleepers.