Table 5. Estimated impact on fire incidence (cumulative over 2000–08) comparing all pre-2000 protected areas against never protected areas.

			Without calipers		With calipers
	Protection	Crude	Estimate [SE]	Pairs	Estimate [SE]	Pairs
LAC	Strict	−0.058	−0.027 [0.002]	46,015	−0.043 [0.001]	28,039
	Multiuse	−0.044	−0.048 [0.003]	52,505	−0.064 [0.002]	29,993
	Unknown	−0.053	−0.038 [0.010]	2,232	−0.023 [0.004]	511
	Indigenous	−0.059	−0.165 [0.003]	36,166	−0.163 [0.003]	28,482
Africa	Strict	−0.043	−0.010 [0.002]	13,507	−0.013 [0.001]	7,582
	Multiuse	−0.031	−0.030 [0.008]	1,592	§ −0.001 [0.004]	715
	Unknown	0.002	§ −0.010 [0.007]	4,980	§ 0.000 [0.004]	2,306
Asia	Strict	−0.010	−0.017 [0.003]	20,683	−0.020 [0.002]	12,101
	Multiuse	−0.018	−0.049 [0.006]	7,408	−0.043 [0.004]	4,319
	Unknown	−0.041	§ −0.010 [0.005]	3,528	−0.044 [0.003]	1,072

^§All estimates significant at p<0.001 except those marked with ^§.

Matching criteria exclude ecoregion.