Table 4.

Estimated annual expenditures for methods to kill household insect pests.

	All responding study households	Urban area	Rural area
Approximate annual expenditure ($MXN) for all methods combined in households taking action to kill household insect pests
Number of households	382	300	82
Median expenditure	408	384	453*
Range for expenditure	<10 to 6,173	<10 to 6,173	10 to 4,514
% of households spending >200 $MXN	69.4	68.0	74.4NS
% of households spending >500 $MXN	39.0	37.3	45.1NS
% of households spending >1,000 $MXN	17.5	15.3	25.6*
Approximate annual expenditure($MXN) for use of insecticide aerosol spray cans in households using that method
Number of households	281	238	43
Median expenditure	336	324	420NS
Range for expenditure	30 to 3,640	30 to 2,400	30 to 3,640
% of households spending >200 $MXN	66.2	65.1	72.1NS
% of households spending >500 $MXN	29.5	29.0	32.6NS
% of households spending >1,000 $MXN	7.5	7.1	9.3NS
Approximate annual expenditure ($MXN) for use of electric plug-in insecticide emitters inhouseholds using that method
Number of households	143	99	44
Median expenditure	270	180	584***
Range for expenditure	<10 to 3,650	<10 to 1,800	10 to 3,650
% of households spending >200 $MXN	55.2	47.5	72.7**
% of households spending >500 $MXN	35.7	28.3	52.3**
% of households spending >1,000 $MXN	16.8	13.1	25.0NS
Approximate annual expenditure ($MXN) for use of mosquito coils in households using that method
Number of households	108	82	26
Median expenditure	135	118	140NS
Range for expenditure	<10 to 5,011	<10 to 5,011	24 to 1,460
% of households spending >200 $MXN	36.1	34.1	42.3NS
% of households spending >500 $MXN	12.0	12.2	11.5NS
% of households spending >1,000 $MXN	6.5	6.1	7.7NS

The statistical significance for the observed differences between the urban area and the rural area are indicated as follows: P > 0.05^NS;

^*P ≤ 0.05;

^**P ≤ 0.01;

^***P ≤ 0.001.