Table 6. Estimated impact on fire incidence (cumulative over 2000–08) comparing 1990–2000 protected areas against never protected areas.

			Without calipers		With calipers
	Protection	Crude	Estimate [SE]	Pairs	Estimate [SE]	Pairs
LAC	Strict	−0.065	−0.038 [0.003]	14,409	−0.077 [0.002]	5,749
	Multiuse	−0.030	−0.062 [0.004]	21,972	−0.075 [0.003]	15,032
	Unknown	−0.063	−0.026 [0.006]	889	too few points	80
	Indigenous	−0.061	−0.128 [0.004]	21,813	−0.127 [0.003]	15,276
Africa	Strict	−0.047	−0.022 [0.004]	2,730	−0.045 [0.004]	1,056
	Multiuse	−0.060	too few points	153	too few points	12
	Unknown	−0.059	−0.066 [0.008]	203	too few points	18
Asia	Strict	−0.022	−0.029 [0.005]	7,355	−0.031 [0.002]	2,536
	Multiuse	0.031	−0.067 [0.020]	1,832	−0.051 [0.008]	559
	Unknown	−0.049	−0.023 [0.006]	2,349	−0.070 [0.004]	569

Matching criteria exclude ecoregion.

Note: The full set of balance metrics and other outputs from these matching analyses are available on request.