TABLE 1.

Body and organ mass of rats exposed prenatally and continuously for 8 wk to unfiltered or filtered Beijing air

Site	Male					Female
	Filtered (n = 8)		Unfiltered (n = 6)		P	Filtered (n = 8)		Unfiltered (n = 6)		P
	Mean	sd	Mean	sd		Mean	sd	Mean	sd
Body	275	33.6	324	27.6	0.011	194	8.54	214	14.5	0.019
Liver	11.5	0.91	14.2	1.55	0.005	7.72	0.61	9.07	0.83	0.008
Spleen	0.79	0.05	0.88	0.06	0.008	0.49	0.06	0.65	0.10	0.009
Adrenal	0.04	0.00	0.06	0.01	0.002	0.05	0.01	0.06	0.01	0.092
Thymus	0.60	0.08	0.66	0.06	0.112	0.53	0.09	0.53	0.07	0.938
Heart	1.01	0.06	1.18	0.13	0.024	0.73	0.04	0.79	0.05	0.041
Brain	1.41	0.07	1.46	0.04	0.095	1.34	0.07	1.36	0.08	0.569
Lung	0.82	0.09	0.93	0.09	0.035	0.66	0.04	0.74	0.03	0.002
Epididymal fat	1.25	0.23	1.48	0.19	0.064