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. 2008 Dec 8;337:a2396. doi: 10.1136/bmj.a2396

Table 6.

 Time in labour ward and duration of active labour. Values are mean (SD) unless stated otherwise

Time in labour (hours) Experimental Control Difference P value
Before (n=1029) After (n=892) Before (n=1291) After (n=1279)
Admission to delivery 8.08 (5.68) 9.60 (11.29) 7.81 (5.07) 8.06 (5.41) 0.75 (−0.55 to 2.05) 0.2
 Missing data (No) 109 51 98 77
Duration of active labour 9.91 (5.35) 10.82 (5.52) 9.55 (4.96) 9.54 (5.17) 0.61 (−0.45 to 1.67) 0.2
 Missing data (No) 145 69 112 98
Time from first admission assessment to delivery 30.2 (115.0) 29.3 (97.5) 34.7 (154.2) 33.3 (152.3) −0.1 (−14.2 to 14.0) 0.988
 Missing data (No) 79 37 70 62