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Table 1 Participant characteristics at baseline and follow-up

From: Comparing how patients value and respond to information on risk given in three different forms during dental check-ups: the PREFER randomised controlled trial

 BaselineFollow-up
Randomised (n = 412)Allocated (n = 407)6-month (n = 185)12-month (n = 153)
GenderMale166 (40.3%)164 (40.3%)79 (42.7%)66 (43.1%)
Female246 (59.7%)243 (59.7%)106 (57.3%)87 (56.9%)
Age category18–34 years125 (30.4%)130 (31.9%)46 (24.9%)43 (28.1%)
35–64 years214 (51.9%)205 (50.4%)102 (55.1%)77 (50.3%)
65+ years70 (17.0%)70 (17.2%)36 (19.5%)32 (20.9%)
Missing data3 (0.7%)2 (0.05%)1 (0.5%)1 (0.7%)
Household income£0–15,599141 (34.2%)136 (33.4%)51 (27.6%)34 (22.2%)
£15,600–31,199142 (34.5%)142 (34.9%)72 (38.9%)65 (42.5%)
£31,200+129 (31.3%)129 (31.7%)62 (33.5%)54 (35.3%)
EducationGCSE or less139 (33.7%)191 (46.9%)92 (49.7%)68 (44.4%)
A-levels145 (35.2%)89 (21.9%)35 (18.9%)33 (21.6%)
Degree+128 (31.1%)127 (31.2%)58 (31.4%)52 (34.0%)
IMD decileLow (1–3)172 (41.7%)173 (42.5%)75 (40.5%)59 (38.6%)
Medium (4–7)135 (32.8%)131 (32.2%)60 (32.4%)54 (35.3%)
High (8–10)100 (24.3%)98 (24%)46 (24.9%)39 (25.4%)
Missing5 (1.2%)5 (1.2%)4 (2.2%)1 (0.7%)
Natural teeth< 2071 (17.2%)68 (16.7%)28 (15.1%)25 (16.3%)
20+341 (82.8%)339 (83.3%)157 (84.9%)128 (83.7%)
Dental attendanceInfrequent: < 6 in 5 years96 (23.3%)97 (23.8%)42 (22.7%)32 (20.9%)
Frequent: 6+ in 5 years314 (76.2%)309 (75.9%)142 (76.8%)121 (79.1%)
Missing2 (0.5%)1 (0.2%)1 (0.5%) 
  1. IMD Index of Multiple Deprivation