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Table 4 Subjectively assessed oral cleanliness at follow up

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

 

6-month group

12-month group

24-month group

Statistical test

Level of oral cleanlinessd (N = 307)

   

Kruskal-

1 (Least clean)

0

2 (2.0)

3 (3.0)

Wallis Test

2

9 (8.4)

3 (3.0)

12 (12.0)

 

3

42 (39.2)

48 (48.0)

55 (55.0)

P = 0.004

4

51 (47.7)

43 (43.0)

23 (25.0)

 

5 (Cleanest)

5 (4.7)

4 (4.0)

5 (5.0)

 

'High’e level of oral cleanliness at follow-up (N = 307)

   

Χ2 test

N (%) scoring 'High’

56 (52.3)

47 (47.0)

30 (30.0)

P = 0.003

Complete dataset analysis (N = 307)

Odds Ratio from Logistic regression

1.00

0.95

0.40

-

(95% CI) for follow up adjusted for baseline high level of oral cleanliness

 

(0.53, 1.70)

(0.22, 0.74)

 

Multiple imputation (ITT) analysis (N = 368)

Odds Ratio from Logistic regression

1.00

0.94

0.39

-

(95% CI) for follow up adjusted for baseline high level of oral cleanliness

 

(0.53, 1.66)

(0.21, 0.73)

 
  1. d Assessed by asking participant, “How clean does your mouth feel on a scale of 1 to 5, where 1 is the least clean you could imagine and 5 is the cleanest you could imagine?”.
  2. e'High’ level of oral cleanliness is defined as a participant reporting a score of 4 or 5.