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Table 3 Subgroup analysis according to different follow up time points

From: Effects of non-surgical periodontal therapy on periodontal clinical data in periodontitis patients with rheumatoid arthritis: a meta-analysis

Follow-up time No. of studies Meta-analysis Heterogeneity Publicaton bias(P-value)
MD 95%CI P-value I2(%) P-value Begg’s test Egger’s test
PD
1mo 2 − 0.14 − 0.47, 0.20 0.43 50.5 0.16 1.00 NA
3mo 6 − 0.05 − 0.20, 0.09 0.43 0.0 0.59 0.13 0.05
6mo 3 − 0.14 − 0.35, 0.06 0.17 0.0 0.49 0.30 0.26
AL
1mo 1 − 0.07 − 0.83, 0.69 0.86 NA NA NA NA
3mo 3 − 0.02 − 0.24, 0.20 0.85 0.0 0.77 0.30 0.20
6mo 2 0.36 0.06, 0.65 0.02 0.0 0.78 1.00 NA
PI
1mo 2 − 0.07 − 0.56, 0.42 0.78 64.1 0.10 1.00 NA
3mo 5 0.31 − 0.03, 0.64 0.08 17.0 0.31 0.46 0.59
6mo 2 0.60 0.08, 1.13 0.02 29.7 0.23 1.00 NA
GI
1mo 1 0.05 − 0.02, 0.12 0.19 NA NA NA NA
3mo 2 − 0.05 − 0.36, 0.26 0.76 61.2 0.11 1.00 NA
BOP
1mo 2 − 0.77 − 4.35, 2.81 0.67 0.0 0.80 1.00 NA
3mo 6 5.93 0.28, 11.58 0.04 54.2 0.05 0.71 0.32
6mo 3 5.02 − 1.28, 11.32 0.12 6.0 0.35 0.30 0.28
  1. AL, attachment loss; BOP, bleeding on probing; CI, confidence interval, GI, gingival index; MD, mean difference; PD, probing depth; PI, plaque index