. Author manuscript; available in PMC: 2023 Nov 15.

Published in final edited form as: Nat Hazards (Dordr). 2023 Feb 20;116(3):3957–3978. doi: 10.1007/s11069-023-05845-x

Table 5.

Final Relogit model independent variables and coefficients

Variable	Estimate	Std. error	Odds ratio (per unit)	P value	Signif. Codes^a
(Intercept)	− 6.42E + 00	5.79E-01	–	< 2.00E-16	^***
Duration (hour)	1.80E-02	5.11E-03	1.0182	4.24E-04	^***
Precipitation (inch)	1.28E-01	2.39E-02	1.1366	9.14E-08	^***
Median age of structures (year)	− 3.42E-02	8.45E-03	0.9663	5.14E-05	^***
Population density (people/sq.mi)	7.79E-05	7.09E-05	1.0001	2.72E-01	⁺
Nighttime event	6.44E-01	2.55E-01	1.9035	1.17E-08	^*
Flash flood alley	1.12E + 00	2.32E-01	3.0557	1.55E-06	^***
Vehicle involvement	2.95E + 00	2.77E-01	19.0678	< 2.00E-16	^***
Bridge density (count/sq.mi)	5.33E-02	2.46E-02	1.0547	0.030355	^*
LWX density (count/sq.mi)^b	2.36E-01	6.40E-02	1.2659	0.000231	^***
Ground slope (degree)	1.16E-02	7.29E-03	1.0117	0.111786	⁺

Signif. codes:

^***

< 0.001;

^**

< 0.01;

< 0.05.,

⁺

> 0.05 but improve model’s performance

LWX = Low water crossing