Owing to a printer's error, several of the mean and standard deviation cost values in Table 2 on page 144 of the April 2010 issue of International Journal of Technology Assessment in Health Care had an addition numeral 2 after the comma. For example, the mean value for postnatal care for mothers and infants receiving progesterone is listed as £1,2338.18. The correct value should be £1,338.18. Table 2, with the corrected values, is shown below. The publisher regrets this error.
Mean Costs and Mean Cost Differences by Cost Category
aThe p values were calculated using Student t-test.
bNonparametric bootstrap estimation using 1000 replications, bias corrected.
cIncludes operative or instrumental delivery (forceps or ventouse).
SD, standard deviation; CI, confidence interval.