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International Journal of Implant Dentistry

Table 6 PPD over time; comparison with the 1st measurement (0 = Baseline), the measurements being made within a period of 10 years. Number of measurement points (n)

From: Dental implants in patients suffering from systemic sclerosis: a retrospective analysis of clinical outcomes in a case series with 24 patients

      

Comparison with Baseline*

Period

n

Mean

Sd

Median

Min–Max

Difference

95% CI

p value

Baseline

200

2.6

0.6

3.0

0.0–4.0

–

  

 ≤ 1 Y

146

2.5

0.6

2.5

0.0–4.0

− 0.02

− 0.11–0.07

0.654

 ≤2 Y

112

2.6

0.6

3.0

0.0–4.0

0.05

− 0.05–0.15

0.343

 ≤3 Y

124

2.5

0.6

2.0

0.0–4.0

0.04

− 0.05–0.14

0.401

 ≤4 Y

70

2.7

0.7

3.0

2.0–5.0

0.04

− 0.07–0.16

0.454

 ≤5 Y

118

2.5

0.7

2.0

0.0–4.0

− 0.06

− 0.16–0.04

0.224

 ≤6 Y

38

2.8

0.7

3.0

2.0–4.0

0.04

− 0.11–0.19

0.628

 ≤7 Y

70

2.4

0.6

2.0

2.0–4.0

− 0.06

− 0.18–0.05

0.277

 ≤8 Y

42

2.5

0.6

2.0

1.0–4.0

− 0.09

− 0.24–0.05

0.209

 ≤9 Y

52

2.6

0.6

2.0

2.0–4.0

0.12

− 0.01–0.25

0.074

 ≤10 Y

50

2.4

0.6

2.0

2.0–4.0

− 0.03

− 0.16–0.11

0.688

  1. Last measurement per implant and measurement point within the period are taken into account
  2. *Random effects linear regression adjusted for implant position
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