Table 4.

Time series analysis between rate of respiratory disease and pollutant.

Variables	Coefficient	Std. Error	T-statistics	p-value
AR	0.1052	0.0527	1.9979	0.0465
Pollutant(t-1)	0.0054	0.0028	1.9621	0.0505
Rain(t-1)	-0.0081	0.0029	-2.8477	0.0047
Constant	1.2382	0.0586	21.1162	0.0000
Variables	Coefficient	Std. Error	T-statistics	p-value
AR	0.1113	0.0526	2.1163	0.0350
TSP(t-1)	0.0398	0.0178	2.2307	0.0262
Rain(t-1)	-0.0082	0.0028	-2.8861	0.0041
Constant	1.2523	0.0509	24.5845	0.0000
Variables	Coefficient	Std. Error	T-statistics	p-value
AR	0.0994	0.0528	1.8825	0.0606
SO2(t)	0.0123	0.0056	2.1986	0.0285
Rain(t-1)	-0.0079	0.0028	-2.7681	0.0059
Constant	1.2468	0.0526	23.7134	0.0000
Variables	Coefficient	Std. Error	T-statistics	p-value
AR	0.1094	0.0525	2.0829	0.0380
N0x(t-1)	0.0124	0.006	2.0837	0.0379
Rain(t-1)	-0.008	0.0028	-2.83	0.0049
Constant	1.2272	0.0607	20.2065	0.0000

AR = auto-correlation term, pollutant_(t-1) = total pollutant concentration on previous day, rain_(t-1) = rainfall at previous day, TSP _(t-1) = total suspended particle at previous day, SO_2(t) = sulfur dioxide at the same day, NO_x(t-1) = nitrogen oxide at previous day.