Table 4 Cox Regression with shared frailty in univariate and adjusted models -analysis between failures in restorations and associated factors
Unadjusted HR (95%CI) | p | Adjusted HR (95%CI) | p | |
|---|---|---|---|---|
Group (ref.: hand-mixed) | ||||
Encapsulated | 0.99 (0.66 to 1.48) | 0.967 | 0.90 (0.60 to 1.35) | 0.617 |
Sex (ref.: female) | * | |||
Male | 0.86 (0.56 to 1.34) | 0.516 | ||
Age (ref.: 3 to 4 years-old | * | |||
5 to 6 years-old | 1.27 (0.81 to 1.98) | 0.294 | ||
dmfs (ref.: 0 to 3) | * | |||
4 or more | 0.84 (0.51 to 1.39) | 0.500 | ||
Dental arch (ref.: upper) | * | |||
Lower | 0.97 (0.65 to 1.45) | 0.894 | ||
Molar type (ref.: 1st molar) | ||||
2nd molar | 0.55 (0.37 to 0.82) | 0.003 | 0.89 (0.59 to 1.34) | 0.572 |
Surface (ref.: Occlusal) | ||||
Occlusoproximal | 3.97 (2.68 to 5.87) | < 0.001 | 3.83 (2.44 to 6.00) | < 0.001 |