The PeopleSize 2000 data were updated to 2003-4 values using statures and weights from L'IFTH (Institut Français du Textile et de l’Habillement – French Textile and Apparel
Institute). L'IFTH conducted a large size survey using scanning as well as landmark-based measuring, with a sample size of 11,500 (including children). The user should just be aware that such clothing studies typically present a slightly more 'optimistic' picture of stature and weight than government health surveys, however the data benefit from a good sample size and balanced geographical sampling.

Standard Deviations were calculated from the Coefficients of Variation in the PeopleSize 2000 UK dataset, in which 18-64 year-old males and 18-39 year-old females closely matched the statures and weights of the new French data.

The PZ2000 data were derived from ratios with stature and weight , applied to the dimensions measured by Rebiffe et al (ref 86), 1981-1982. The ratios were validated against the Haslegrave study (ref. 32) and then updated with statures and weights by using averages of relevant age groups from the 1991 INSEE Premiere publication (ref 87). The sample size was over 21,000. The statures validated well from Rebiffe and the Insee 1980 survey in relation to the change in UK statures from Haslegrave 1981 to the Department of Health 1990's surveys.