Table 7 Concentration index and decomposition analyses for the number of FTs
Concentration index | 0.24*** | 100.0% |
Projected concentration index | 0.26 | 110.9% |
Residual term | − 0.03 | − 10.9% |
Variable | Contributions | Percentage contribution | Concentration index | Elasticises |
|---|---|---|---|---|
Gender | 0.00 | 0.1% | 0.00 | 0.17 |
Type of household | 0.02 | 7.4% | − 0.06 | − 0.31 |
Age | 0.00 | − 1.1% | 0.01 | − 0.42 |
Education overall | 0.01 | 2.2% | – | – |
 Low education level | Base | Base | – | – |
 Medium education level | − 0.02 | − 10.2% | − 0.08 | 0.31 |
 High education level | 0.03 | 12.4% | 0.29 | 0.10 |
Consumption of desserts | 0.00 | 1.2% | 0.13 | 0.02 |
Consumption of sugared beverages | − 0.01 | − 2.4% | 0.13 | − 0.05 |
Last time dental attendance overall | 0.23 | 96.8% | – | – |
 Never visited dentist | Base | Base | – | – |
 Visited dentist 1 year ago | 0.06 | 24.9% | 0.04 | 1.55 |
 Visited dentist 6–12 months ago | 0.07 | 28.7% | 0.14 | 0.48 |
 Visited dentist within last 6 months | 0.10 | 43.2% | 0.22 | 0.48 |
Toothpick use | 0.02 | 9.4% | 0.04 | 0.62 |
Flossing | 0.01 | 3.5% | 0.27 | 0.03 |
Reimbursement for dental treatment | 0.00 | − 0.8% | 0.50 | 0.00 |
Urban employee basic medical insurance system | − 0.09 | − 39.6% | 0.40 | − 0.23 |
Urban resident medical insurance system | 0.00 | − 0.5% | 0.01 | − 0.12 |
The new-type rural medical collaboration system | 0.08 | 34.5% | − 0.20 | − 0.42 |
Self-rated oral health overall | − 0.01 | − 2.1% | – | – |
 Self-rate oral health as low | Base | Base | – | – |
 Self-rate oral health as medium | 0.00 | 0.0% | 0.07 | 0.00 |
 Self-rate oral health as high | − 0.01 | − 2.1% | 0.06 | − 0.08 |
High scores of oral health knowledge | − 0.02 | − 6.5% | 0.30 | − 0.05 |
High scores of oral health attitude | 0.00 | 0.7% | 0.01 | 0.24 |
Chronic disease | 0.01 | 3.0% | 0.07 | 0.11 |
Log household income | 0.01 | 5.1% | 0.45 | 0.03 |