Sizing chaos
6 days ago
- #anthropometry
- #data-analysis
- #apparel-sizing
- Used anthropometric data from the National Center for Health Statistics (HHS) to determine median waistline measurements for U.S. women and girls (2021-2023).
- Data segmented by age groups: two-year ranges for under 20 (median 141 participants per group) and nine-year ranges for over 20 (median 465 participants per group).
- Excluded pregnant women; included percentile breakdowns (5th to 95th) for extrapolation.
- Compared data with 1988-1994 HHS study (7,410 women), converting measurements from cm to inches.
- Analyzed size charts from diverse U.S. apparel brands (mass market, fast fashion, premium, luxury), focusing on 'regular' and 'plus' sizes (excluding petite/tall/curve).
- Collected bust, waist, and hip measurements (ranges or single values) with U.S. numeric and alpha sizing labels.
- Size chart data manually captured in July 2025; may not reflect current brand standards due to frequent updates.
- Referenced ASTM International's Standard Table of Measurements (1995: sizes 2-20; 2021 update: sizes 00-20).
- Ransom note letters sourced from Indieground.