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Table 4 Uni and multivariate linear regression analysis for serum and salivary A.actinomycetemcomitans IgG in all patients. Age was included as continuous variable. For PT, controls served as reference. For gender, male served as reference. SES, socioeconomic status; BMI, PT, periodontitis

From: Association among serum and salivary A. actinomycetemcomitans specific immunoglobulin antibodies and periodontitis

  Variable Univariate model Multivariate model
B 95% CI P B 95% CI P
Serum A. actinomycetemcomitans IgG levels Age (years) −0.045 −0.125;0.155 0.236 − 0.112 − 0.118; 0.412 0.554
Male gender 0.312 −0.101;0.419 0.345 0.327 −0.332; 0.412 0.055
Education −0.041 −0.198;0.289 0.187 −0.085 − 0.318; 0.289 0.498
SES 0.185 −0.122;0.296 0.396 0.219 −0.231;0.155 0.254
Smoking 0.174 −0.029;0.321 0.258 0.156 −0.147;0.187 0.199
Triglycerides 0.136 −0.111;0.365 0.221 0.129 −0.105;0.321 0.187
LDL Cholesterol 0.158 0.096;0.254 0.155 0.115 −0.123;0.221 0.069
HDL Cholesterol 0.141 0.116;0.365 0.134 0.108 −0.085;0.344 0.075
PT 0.298 0.212;0.478 0.013 0.315 −0.041;0.458 0.033
hs-CRP 0.419 0.029;0.652 < 0.001 0.374 0.157;0.336 0.014
BMI 0.321 0.96;0.441 < 0.001 0.254 0.125;0.452 0.017
Salivary A. actinomycetemcomitans IgG levels Age (years) −0.112 −0.021;0.112 0.335 0.048 −0.047;0.178 0.551
Male gender 0.187 −0.155;0.289 0.214 0.098 −0.058;0.410 0.554
Education −0.145 −0.189;0.113 0.412 −0.074 − 0.023;0.201 0.328
SES 0.211 −0.099;158 0.321 0.055 0.022;0.211 0.352
Smoking 0.158 −0.254;0.078 0.258 0.147 −0.052;0.256 0.214
Triglycerides 0.289 −0.187;0.554 0.654 0.369 −0.056;0.441 0.551
LDL Cholesterol 0.199 −0.025;0.325 0.294 0.211 0.058;0.351 0.234
HDL Cholesterol 0.174 −0.078;0.365 0.551 0.089 0.027;0.169 0.337
PT 0.158 −0.045;0.336 0.019 0.033 −0.112;0.245 0.141
hs-CRP 0.096 0.045;0.214 < 0.001 0.047 0.039;0.158 < 0.001
BMI 0.113 0.058;0.199 0.036 0.058 0.078;0.201 0.025
Serum A. actinomycetemcomitans IgG levels 0.141 −0.117;0.421 0.189 −0.116 −0.147;0.278 0.258