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. 2021 Jun 9;21:293. doi: 10.1186/s12903-021-01651-8

Table 1.

Patients’ characteristics that affected the early survival rate

Survival (%) Total implants (N) p value
Gender 0.04*
Male 1163 (95.88) 1213
Female 811 (96.55) 840
Age (years) 0.443
< 30 241 (96.68) 241
30–60 1305 (95.46) 1367
≥ 60 436 (97.98) 445
Dentition 0.272
Maxillary 882 (95.45) 924
Mandibular 1092 (96.72) 1129
Dental position 0.002**
Anterior teeth 322 (93.33) 345
Premolar 439 (95.28) 461
Molar 1213 (97.67) 1247
Bone quality 0.018*
Class I 100 (90.90) 110
Classes II–III 1723 (96.36) 1788
Class IV 151 (97.41) 155

*p < 0.05; **p < 0.01; ***p < 0.001