Effects of air pollution on neonatal prematurity in guangzhou of china: a time-series study

Table 4 Results of single air pollutant model lag effects and cumulative effects of PM₁₀

PM₁₀	Estimate⁽¹⁾	Std.Error⁽²⁾	RR	95%CI	t Value	Pr > \|t\|
Lag effects
Lag0	0.0500	0.0217	1.0512	1.0087 ~1.0938	2.30	0.0220
Lag1	0.0157	0.0221	1.0158	0.9725 ~1.0592	0.71	0.4771
Lag2	0.0211	0.0222	1.0213	0.9777 ~1.0648	0.95	0.3439
Lag3	0.0422	0.0221	1.0431	0.9997 ~1.0865	1.91	0.0575
Lag4	0.0097	0.0225	1.0097	0.9657 ~1.0538	0.43	0.6663
Lag5	-0.0031	0.0226	0.9969	0.9526 ~1.0413	-0.14	0.8923
Lag6	0.0014	0.0227	1.0014	0.9569 ~1.0458	0.06	0.9525
Lag7	-0.0094	0.0229	0.9906	0.9457 ~1.0355	-0.41	0.6811
Cumulative effect
Avg0	0.0500	0.0217	1.0512	1.0087 ~1.0938	2.30	0.0220
Avg1	0.0423	0.0243	1.0432	0.9955 ~1.0909	1.74	0.0831
Avg2	0.0486	0.0269	1.0498	0.9972 ~1.1025	1.81	0.0710
Avg3	0.0651	0.0291	1.0673	1.0103 ~1.1243	2.24	0.0258
Avg4	0.0665	0.0313	1.0688	1.0074 ~1.1301	2.13	0.0342
Avg5	0.0608	0.0334	1.0627	0.9972 ~1.1281	1.82	0.0696
Avg6	0.0570	0.0353	1.0586	0.9896 ~1.1277	1.62	0.1069
Avg7	0.0497	0.0371	1.0510	0.9783 ~1.1237	1.34	0.1811

ISSN: 1476-069X