Table 4 Results of validation study performed after construction of prognostic index from logistic regression model
From: Prognostic factors of successful tympanoplasty in pediatric patients: a cohort study
Predictive variable | Patient number | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Code | Description | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
1 | Absence of craniofacial dysmorphias | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
2 | State of contralateral ear | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
3 | Previous adenoidectomy | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
4 | Cause of perforation | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
5 | Size of perforation | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 |
6 | State of mucosa | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
7 | Age at onset of symptoms | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |
Probability of success | 0.78 | 0.85 | 0.57 | 0.57 | 0.76 | 0.72 | 0.62 | 0.70 | 0.70 | 0.70 | 0.86 | 0.70 | |
Outcome | S a | S | S | S | S | S | F b | F | S | S | S | S | |