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. 2022 Jul 2;26(4):365–372. doi: 10.4103/jisp.jisp_45_21

Table 4.

Comparison of prevalence of periodontitis among full-term and preterm group

Periodontitis Number of patients χ2 P OR 95% CI


Full term, n (%) Preterm, n (%) Lower Upper
Present 3 (4.8) 21 (29.2) 13.691 <0.001* 1.90 1.48 2.45
Absent 60 (95.2) 51 (70.8)

*P<0.05-statistically significant. χ2 – Chi-square; n – Number of patients; OR – Odd’s ratio; CI – Confidence interval