[Table/Fig-3]:

Effect of epidural analgesia on duration of first and second stage of labour

S. No.	Author	Year	No. of patients	First stage with epidural	Second stage with epidural
1	Thorp et al., [18]	1993	93	Prolong	Prolong
2	Bofill et al., [19]	1997	100	No effect	No effect
3	Halpren et al., [20]	1998	2369	Prolong	Prolong
4	Zimmer EZ et al., [21]	2000	847	-	Prolong
5	Barbara et al., [7]	2002	-	No effect	Prolong
6	Sharma et al., [22]	2004	2703	Prolong	Prolong
7	Liu [23]	2004	2962	-	Prolong
8	Fernandez-Guisasola [24]	2004	4364	Prolong	Prolong
9	Sienko J et al., [25]	2005	1334	Prolong	Prolong
10	Anim Souman et al., [8]	2005	6664	Prolong	Prolong
11	Wu CY et al., [26]	2005	412	Prolong	Prolong
12	Zhang et al., [27]	2005	722	Prolong	Prolong
13	Wong et al., [15]	2005	750	Short	No effect
14	Shahram Nafisi [28]	2006	395	No effect	No effect
15	Liang [29]	2007	583	Prolong	Prolong
16	Fyneface-Ogan et al., [16]	2009	50	Short	Short
17	Raja [30]	2009	156	-	Prolong
18	Anwer et al., [31]	2010	70	-	Prolong
19	Anim-Somuah et al., [32]	2011	9658	-	Prolong
20	Mousa et al., [33]	2012	160	No effect	No effect
21	Present study	2014	120	Short	Prolong