Multinomial Logistic Regression Summary
Coefficient Estimates, Confidence Intervals, and Odds Ratios
Variable Estimate Std. Error 95% CI Lower 95% CI Upper Odds Ratio
(Intercept) 13.06 2.09 8.97 17.15 469,931.28
INATTENTIONINDY 1.29 2.69 −3.98 6.56 3.63
UNDERINFLUnknown −12.27 1.57 −15.34 −9.20 0.00
UNDERINFLY 2.76 6.88 −10.73 16.25 15.86
WEATHERBlowing Snow −9.28 0.00 −9.28 −9.28 0.00
WEATHERClear −2.10 2.06 −6.15 1.94 0.12
WEATHERFog/Smog/Smoke −0.64 1.95 −4.46 3.19 0.53
WEATHEROther −1.88 5.80 −13.25 9.49 0.15
WEATHEROvercast −2.16 2.03 −6.13 1.82 0.12
WEATHERPartly Cloudy −1.88 0.45 −2.76 −1.00 0.15
WEATHERRaining −0.78 2.16 −5.02 3.46 0.46
WEATHERSevere Crosswind −0.43 0.40 −1.22 0.36 0.65
WEATHERSleet/Hail/Freezing Rain 1.59 0.26 1.09 2.10 4.92
WEATHERSnowing −1.50 6.79 −14.80 11.80 0.22
WEATHERUnknown −2.11 3.29 −8.56 4.34 0.12
ROADCONDIce 1.38 7.29 −12.90 15.66 3.98
ROADCONDOil 3.62 0.13 3.37 3.87 37.28
ROADCONDOther 2.64 0.17 2.30 2.97 13.97
ROADCONDSand/Mud/Dirt 3.10 0.12 2.86 3.34 22.15
ROADCONDSnow/Slush 0.86 8.85 −16.49 18.21 2.37
ROADCONDStanding Water 3.05 0.21 2.64 3.47 21.21
ROADCONDUnknown 0.08 3.79 −7.35 7.51 1.08
ROADCONDWet −1.24 1.40 −3.98 1.49 0.29
SPEEDINGY −2.79 0.97 −4.70 −0.88 0.06
(Intercept) 12.17 2.09 8.08 16.26 193,700.64
INATTENTIONINDY 1.45 2.69 −3.82 6.72 4.28
UNDERINFLUnknown −10.62 1.57 −13.69 −7.55 0.00
UNDERINFLY 3.04 6.88 −10.45 16.53 20.83
WEATHERBlowing Snow 0.78 0.67 −0.54 2.09 2.18
WEATHERClear −1.98 2.06 −6.03 2.06 0.14
WEATHERFog/Smog/Smoke −0.51 1.95 −4.33 3.32 0.60
WEATHEROther −2.06 5.80 −13.43 9.31 0.13
WEATHEROvercast −2.06 2.03 −6.04 1.91 0.13
WEATHERPartly Cloudy −1.39 0.45 −2.27 −0.51 0.25
WEATHERRaining −0.61 2.16 −4.85 3.62 0.54
WEATHERSevere Crosswind −0.67 0.44 −1.53 0.18 0.51
WEATHERSleet/Hail/Freezing Rain 1.59 0.26 1.07 2.10 4.88
WEATHERSnowing −1.65 6.79 −14.95 11.65 0.19
WEATHERUnknown −2.91 3.29 −9.36 3.53 0.05
ROADCONDIce 0.88 7.29 −13.40 15.16 2.42
ROADCONDOil 3.93 0.13 3.69 4.18 51.03
ROADCONDOther 2.61 0.18 2.25 2.96 13.57
ROADCONDSand/Mud/Dirt 3.13 0.12 2.89 3.37 22.90
ROADCONDSnow/Slush 0.15 8.85 −17.20 17.51 1.17
ROADCONDStanding Water 2.64 0.23 2.19 3.08 14.00
ROADCONDUnknown −1.24 3.79 −8.67 6.19 0.29
ROADCONDWet −1.25 1.40 −3.99 1.48 0.29
SPEEDINGY −2.52 0.97 −4.43 −0.61 0.08
(Intercept) 3.46 2.08 −0.62 7.55 31.96
INATTENTIONINDY 0.90 2.69 −4.38 6.17 2.45
UNDERINFLUnknown −10.10 1.58 −13.19 −7.01 0.00
UNDERINFLY 3.63 6.88 −9.86 17.12 37.71
WEATHERBlowing Snow 9.75 0.67 8.44 11.07 17,235.44
WEATHERClear 3.94 2.06 −0.10 7.98 51.50
WEATHERFog/Smog/Smoke 4.67 1.96 0.82 8.51 106.21
WEATHEROther 3.79 5.81 −7.60 15.17 44.04
WEATHEROvercast 3.81 2.03 −0.16 7.78 45.35
WEATHERPartly Cloudy 4.94 0.54 3.89 5.99 139.76
WEATHERRaining 5.18 2.16 0.95 9.41 177.75
WEATHERSevere Crosswind −5.81 0.00 −5.81 −5.81 0.00
WEATHERSleet/Hail/Freezing Rain 7.55 0.38 6.81 8.29 1,901.29
WEATHERSnowing 4.25 6.79 −9.06 17.56 70.38
WEATHERUnknown 3.10 3.29 −3.36 9.55 22.13
ROADCONDIce 0.70 7.29 −13.58 14.99 2.02
ROADCONDOil −8.37 0.00 −8.37 −8.37 0.00
ROADCONDOther 3.01 0.30 2.42 3.60 20.31
ROADCONDSand/Mud/Dirt −8.52 0.00 −8.52 −8.52 0.00
ROADCONDSnow/Slush −0.02 8.86 −17.39 17.34 0.98
ROADCONDStanding Water 2.82 0.39 2.05 3.59 16.73
ROADCONDUnknown −1.65 3.80 −9.10 5.79 0.19
ROADCONDWet −1.38 1.40 −4.12 1.36 0.25
SPEEDINGY −1.82 0.98 −3.73 0.09 0.16
(Intercept) 3.09 2.09 −1.01 7.19 21.96
INATTENTIONINDY −0.22 2.70 −5.52 5.07 0.80
UNDERINFLUnknown −7.98 1.93 −11.77 −4.19 0.00
UNDERINFLY 4.30 6.88 −9.19 17.79 73.70
WEATHERBlowing Snow −0.50 0.00 −0.50 −0.50 0.61
WEATHERClear 1.99 2.07 −2.07 6.04 7.28
WEATHERFog/Smog/Smoke 4.46 1.97 0.60 8.32 86.44
WEATHEROther 3.54 5.83 −7.88 14.96 34.47
WEATHEROvercast 2.24 2.04 −1.75 6.23 9.38
WEATHERPartly Cloudy 5.44 0.53 4.40 6.47 229.36
WEATHERRaining 3.64 2.17 −0.62 7.90 38.22
WEATHERSevere Crosswind 6.72 0.65 5.45 7.99 829.71
WEATHERSleet/Hail/Freezing Rain −12.23 0.00 −12.23 −12.23 0.00
WEATHERSnowing 2.48 6.87 −10.99 15.94 11.91
WEATHERUnknown 0.29 3.42 −6.41 7.00 1.34
ROADCONDIce −1.00 7.38 −15.47 13.47 0.37
ROADCONDOil −5.26 0.00 −5.26 −5.26 0.01
ROADCONDOther −15.58 0.00 −15.58 −15.58 0.00
ROADCONDSand/Mud/Dirt −6.18 0.00 −6.18 −6.18 0.00
ROADCONDSnow/Slush −0.84 8.93 −18.34 16.65 0.43
ROADCONDStanding Water −18.67 0.00 −18.67 −18.67 0.00
ROADCONDUnknown −2.64 3.92 −10.33 5.04 0.07
ROADCONDWet −1.92 1.41 −4.68 0.85 0.15
SPEEDINGY −1.09 0.98 −3.01 0.83 0.34