Table 2.

Haematoma volume at different time nodes in the two groups ($\stackrel{-}{\mathrm{x}}$±s, ml)

	Conservative treatment group	Stereotactic group	t value	P value
Treatment for 1 day	22.08 ± 4.26	17.70 ± 4.54	3.85	0.000
Treatment for 3 days	22.08 ± 4.26	5.03 ± 3.49	16.92	0.000
Treatment for 7 days	22.06 ± 4.08	2.46 ± 1.69	24.26	0.000
Treatment for 30 days	2.47 ± 2.75	0.00 ± 0.00	4.91	0.000