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Table 1 Significance of individual factors by time period, outcome (destroyed, survived), and outcome × time period for a subset of single-family homes in Paradise, CA. Means for time period, outcome, and outcome × time period (when interaction was significant) are provided below (standard error in parentheses). Levels within variables followed by different letters were significantly different (P<0.05)

From: Housing arrangement and vegetation factors associated with single-family home survival in the 2018 Camp Fire, California

  N Lot size (ha) Dist. nearest struct. (m) Dist. nearest destr. struct. (m) Total structures 100 m Total structures destr. 100 m % Canopy cover
0–30 m
% Canopy cover
30–100 m
Slope (%)
   P
Outcome   0.946 0.971 <0.001 0.004 <0.001 0.154 0.001 0.532
Time period   0.153 0.010 <0.001 0.002 <0.001 <0.001 0.664 0.290
Outcome × time period   - - 0.026 - - - - -
   Average (standard error)
Destroyed 296 0.42 (0.07) 15.4 (1.6) - 10.3a (0.8) 8.9a (0.7) 40.5 (3.1) 49.1a (2.8) 6.9 (0.6)
Survived 104 0.42 (0.08) 15.5 (1.9) - 8.1b (0.9) 5.5b (0.9) 36.0 (3.7) 40.0b (3.3) 7.2 (0.6)
Before 1997 200 0.30 (0.04) 10.9b (0.8) - 11.4a (0.4) 9.4a (0.4) 49.5a (1.6) 46.7 (1.4) 6.4 (0.3)
1997-2007 100 0.45 (0.09) 16.1a (2.1) - 8.0b (1.0) 5.9b (1.0) 35.7b (4.1) 43.7 (3.7) 7.5 (0.7)
2008-2018 100 0.51 (0.17) 19.3ab (4.0) - 8.1ab (1.9) 6.3ab (1.8) 29.5b (7.9) 43.2 (7.0) 7.2 (1.4)
<1997 Dest. 177 - - 12.3c (0.8) - - - - -
<1997 Surv. 23 - - 22.3b (2.1) - - - - -
1997–2007 Dest. 63 - - 20.0bc (3.4) - - - - -
1997–2007 Surv. 37 - - 34.6ab (4.4) - - - - -
2008–2018 Dest. 56 - - 16.1bc (6.8) - - - - -
2008–2018 Surv. 44 - - 54.0a (7.7) - - - - -