表 3.

两组患者不同时间点VAS评分及盐酸纳布啡注射液总使用量

VAS scores and the total amount of nalbuphine hydrochloride injection used at different time points in the two groups (Mean± SD, n=50)

Group	After extubation 15 min	After extubation 30 min	After extubation 60 min	Total nalbuphine use
Observation	2.10±0.40	2.83±0.73	2.87±0.82	0.80±0.99
Controt	2.53±0.63	3.70±0.49	3.40±0.86	1.80±1.10
χ 2	0.4628	0.5579	0.998	0.4921
P	0.004	0.007	0.002	0.003