Patient perceptions regarding benefits of single visit scale and polish: a randomised controlled trial

BMC Oral Health

Table 2 Baseline characteristics of trial participants

Characteristic	6-month group	12-month group	24-month group
Baseline allocation	125	122	122
Age (years )
Mean (SD)	37.1 (10.4)	39.6 (10.8)	36.4 (10.6)
Gender
N (%) Male	57 (45.6)	43 (35.2)	34 (27.9)
IMD Quintile ^a
N (%)
1 Most Deprived	40 (32.0)	40 (32.8)	34 (27.9)
2	29 (23.2)	29 (23.8)	30 (24.6)
3	18 (14.4)	18 (14.8)	24 (19.7)
4	24 (19.2)	21 (17.2)	21 (17.2)
5 Least Deprived	14 (11.2)	14 (11.5)	13 (10.7)
Smoking history ^b
N (%)
Never	83 (66.4)	70 (57.4)	71 (58.2)
Past	21 (16.8)	31 (25.4)	29 (23.8)
Current	12 (9.6)	15 (12.3)	15 (12.3)
Missing	8	6	7
No. of Teeth present
Mean (SD)	27.8 (2.4)	27.8 (2.1)	27.6 (2.3)
Missing	0	1	0
Decayed Teeth
N (%) any	9 (37.5)	8 (33.3)	7 (29.2)
Missing	0	1	0
Filled Teeth
Mean (SD)	7.7 (4.5)	7.7 (4.7)	6.8 (4.3)
Missing	0	1	0

^a IMD derived from participants’ postcodes. Quintiles based on national standards.
^b Self reported smoking status. For participants recruited 02/2006 – 09/2006 these data were reported retrospectively, at the 12-month recall. For all other patients, smoking data were reported at baseline.

ISSN: 1472-6831