Table 5 Mean probing pocket depth, mean clinical attachment levels and percentage of participants in each age group with one or more sites exhibiting attachment levels exceeding specific thresholds

Number of subjects

53

51

95

52

38

30

319

52

84

63

87

170

117

573

 Prevalence CAL ≥3 mm

81

94

98

98

90^a

96

83

80.8

99.1

100

100

100

100

92.1

 Prevalence CAL ≥5 mm

19

31^a

55

62

84^a

82

52

13.5

40.5

62

65.6

80.8

95.5

70.3

 Mean CAL (mm)

1.2 ± 0.6

1.5 ± 0.5^†

2.1 ± 0.8^†

2.7 ± 1.0

3.7 ± 1.3

3.7 ± 1.5

2.2 ± 1.2

1.6 ± 0.5

2.2 ± 0.6

2.5 ± 0.5

2.9 ± 1.1

3.0 ± 0.8

3.4 ± 1.0

2.8 ± 1.0

 Mean PPD (mm)

2.3 ± 0.5

2.4 ± 0.4

2.6 ± 0.5

2.7 ± 0.5

2.8 ± 0.7

2.9 ± 0.8

2.5 ± 0.6

2.3 ± 0.2

2.4 ± 0.3

2.4 ± 0.4

2.5 ± 0.5

2.5 ± 0.5

2.7 ± 0.6

2.5 ± 0.5