Table 5. Mean modified Ramsay sedation scores at different time intervals.

Vs: versus; HS: highly significant; NS: not significant; S: significant; SD: standard deviation

Ramsay sedation score	Group A		Group B		Group C		P value	P value	P value
	Mean	SD±	Mean	SD±	Mean	SD±	Group A vs C	Group B vs C	Group A vs B
0 h	2.73	0.407	2.60	0.31	2.0	0	<0.001 (HS)	<0.001 (HS)	0.261 (NS)
1 h	2.5	0.498	2.4	0.123	1.7	0.466	<0.001 (HS)	<0.001 (HS)	0.352 (NS)
2 h	2.4	0.305	2.3	0.325	1.7	0.466	0.002 (S)	<0.001 (HS)	0.078 (NS)
4 h	2	0	1.9	0.305	1.73	0.45	0.013 (S)	0.015 (S)	0.73 (NS)
6 h	1.87	0.183	1.83	0.490	1.40	0.498	0.016 (S)	0.019 (S)	0.786 (NS)
12h	1.83	0.592	1.76	0.430	1.63	0.490	0.159 (NS)	0.267 (NS)	0.831 (NS)
24 h	1.53	0.681	1.50	0.509	1.56	0.254	0.16 (NS)	0.345 (NS)	0.405 (NS)