Here is an extract from my article, "WHO Finally Admits - the 'Optimum Rate [of Caesarean Section] Is Unknown' and 'There Is No Empirical Evidence' for Its 1985 Recommendation of 10-15%", published on freelibrary.com today:-
In its latest 2009 publication, 'Monitoring Emergency Obstetric Care: a handbook', the WHO states that, 'Both very low and very high rates of caesarean section can be dangerous, but the optimum rate is unknown. Pending further research, users of this handbook might want to continue to use a range of 5-15% or set their own standards.'
The statement continues, 'Earlier editions of this handbook set a minimum (5%) and a maximum (15%) acceptable level for caesarean section. Although WHO has recommended since 1985 that the rate not exceed 10-15%, there is no empirical evidence for an optimum percentage or range of percentages, despite a growing body of research that shows a negative effect of high rates.'
Evidently, there is now a degree of ambiguity in what the WHO recommends. It recommends that regions 'use a range of 10-15%' (even though there is no empirical evidence for such a range) or implement their own standards. Consequently, it is perhaps inevitable that different birth advocate groups will take a different view on what the new handbook statement actually means, and arguments over the credibility of an optimum caesarean rate (emergency and/or elective) will continue.