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. 2017 Nov 28;45(1):46–55. doi: 10.1111/jcpe.12810

Table 1.

Multilevel analysis with the selected patient‐ and tooth‐related factors for molars and non‐molars

B E.T. Wald gl Sig. Exp(B) 95% CI
Molars
Constant −3,897 0.968 16,219 1 0.000 0.020
Baseline age −0.019 0.009 4,965 1 0.026 0.981 0.964 0.998
Bruxism 0.476 0.146 10,678 1 0.000 1,609 1,210 2,140
Smoking 0.759 0.148 36,213 1 0.000 2,136 1,590 2,857
Type of molar A
Type of molar B 0.920 0.231 15,230 1 0.000 2,466 1,567 3,879
n. baseline teeth −0.102 0.026 15,076 1 0.000 0.903 0.858 0.951
Mobility, reference 38,127 3 0.000
Mobility 1 0.527 0.161 10,051 1 0.002 1,665 1,215 2,281
Mobility 2 1,347 0.264 26,099 1 0.000 3,846 2,294 6,447
Mobility 3 1,872 0.544 11,859 1 0.001 6,502 2,240 18,870
PPD, reference 24,108 2 0.000
PPD 5–6 mm 0.799 0.313 6,534 1 0.011 2,224 1,205 4,105
PPD >6 mm 1,368 0.323 17,976 1 0.000 3,929 2,087 7,396
FI, reference 18,304 3 0.000
FI I 0.259 0.181 2,056 1 0.152 1,296 0.909 1,847
FI II 0.610 0.196 9,656 1 0.002 1,841 1,253 2,705
FI III 1,241 0.334 13,829 1 0.000 3,458 1,798 6,649
BL, reference 30,494 2 0.000
BL 30%–50% 0.545 0.202 7,287 1 0.007 1,724 1,161 2,561
BL >50% 1,196 0.222 28,931 1 0.000 3,307 2,139 5,113
Non‐Molars
Constant −4.039 0.964 17,537 1 0.000 0.018
Severe periodontitis 0.669 0.223 8,964 1 0.003 1,952 1,260 3,025
Smoking*Bruxism 0.624 0.194 10,309 1 0.001 1,866 1,275 2,731
Type of non‐molar A 65,832 2 0.000
Type of non‐molar B 0.747 0.304 6,044 1 0.014 2,110 1,164 3,828
Type of non‐molar C 1,857 0.292 40,498 1 0.000 6,402 3,614 11,342
n. baseline teeth −0.176 0.024 52,775 1 0.000 0.838 0.799 0.879
Mobility, reference 71,333 3 0.000 1.191
Mobility 1 0.598 0.216 7,629 1 0.006 1,818 1,190 2,779
Mobility 2 2,038 0.271 56,744 1 0.000 7,679 4,518 13,051
Mobility 3 2,468 0.541 20,845 1 0.000 11,798 4,090 34,034
PPD, reference 17,477 2 0.000
PPD 5–6 mm 0.354 0.219 2,622 1 0.105 1,425 0.928 2,187
PPD >6 mm 0.971 0.244 15,862 1 0.000 2,641 1,638 4,260
BL, reference 30,121 2 0.000 14.036
BL 30%–50% 0.286 0.243 1,838 1 0.240 1,331 0.826 2,145
BL >50% 1,217 0.263 21,501 1 0.000 3,379 2,020 5,652
Bruxism*C/R 1/2 11,111 2 0.004 2.256
Bruxism*C/R 1/1.5 0.110 0.191 0.330 1 0.566 1.11 0.767 1,623
Bruxism*C/R 1/1 1,195 0.359 11,104 1 0.001 3,304 1,636 6,672

Type of molar A, lower first molar; Type of molar B, upper first, upper second and lower second molars; Type of non‐molars A, lower canines and lower premolars; type of tooth B, upper canines, upper incisors and lower lateral incisors; Type of molar C, upper premolars and lower central incisors; n. baseline teeth, number of baseline teeth; PPD, probing pocket depth; FI, furcation involvement; BL, bone loss. Smoking*bruxism was an interaction effect; bruxism*C/R 1/1 was an interaction effect.