Table 6.2 Meta‐analysis of placebo controlled trials of mesalazine for maintenance of medically induced remission in Crohn's disease.

Author	Year	Number of trials	Number of patients	Duration (months)	Result			Ref section 2
					Odds ratio	95% CI	p Value
Steinhart	1994	10	1022	12	0.77	0.64 to 0.92	–	117
Messori	1994	8	941	12	0.47	0.33 to 0.67	<0.001	118
Camma	1997	10	1371	4–48	–	–	0.06	119
Akobeng	2005	7	897	12–24	1.00	0.80 to 1.24	NS	120