Table 3 Estimation of covariable relative risks on behavioural and development disorders in children under 15 years old from the Alt Empordà region in Catalonia, Spain, from 2009 to 2019.

Gender [Girl]

0.7216 (0.5867, 0.8874)*

Age in standardized units

1.9446 (1.6661, 2.2696)*

Number of chronic diseases

1.7713 (1.4647, 2.1420)*

Glucose intolerance [Yes]

2.8438 (1.5983, 5.0600)*

Obesity [Yes]

1.8905 (1.4125, 2.5303)*

Alcohol consumption [Yes]

5.4888 (1.6891, 17.8359)*

Tobacco consumption [Yes]

6.3025 (3.8947, 10.1989)*

Individual socioeconomic level [reference category: Economic contribution up to 10%]

[Economic contribution equal to 40%]

0.6314 (0.4690, 0.8499)*

[Economic contribution of 50% or more]

0.3303 (0.2229, 0.4895)*

Average income in the census tract [reference category: First quartile, Q₁ 9811–9992€]

[Second quartile, Q₂ (9993–11,028€)]

4.0844 × 10² (1.9564 × 10^–2, 1.3218 × 10⁷)

[Third quartile, Q₃ (11,029–11,912€)]

0.1016 (1.5265 × 10^–6, 1.0827 × 10⁴)

[Fourth quartile, Q₄ (11,913–14,005€)]

1.5563 × 10³ (2.4230 × 10^–2, 1.5593 × 10⁸)