Obesity

Anthropometric percentiles for Peruvian adults: population reference curves for body mass index, waist circumference, and waist-to-height ratio

Int J Obes (Lond)Published Cross-sectional study

Authors' conclusion

Age- and sex-specific anthropometric percentiles reveal distinctive age patterns that differ substantially from international cut-off points. Classical criteria for abdominal obesity (ATP III, IDF) and WHtR (≥0.5) systematically overestimate prevalence in the Peruvian population, with discrepancies reaching differences of up to 23.5 percentage points between criteria. Altitude differences are clinically significant, suggesting specific physiological adaptations in Andean populations.

Study context

Population
Peruvian adults aged 20–97 years, Demographic and Family Health Survey (DHS) 2015 to 2023385,247 initially
Participants
164,513 adults
Outcome
Age- and sex-specific percentile curves (P5–P97) for BMI, WC and WHtR
Methodological detailsanalytical, population-based survey (DHS 2015 to 2023), LMS method
  • Analytical
  • Population-based survey (DHS 2015 to 2023)
  • LMS method

Main finding

As reported in the abstract

Anthropometric distributions
Age (mean ± SD), years
44.38 ± 16.72
Body mass index (BMI) (mean ± SD), kg/m²
27.77 ± 4.80
Overweight prevalence (BMI criteria)
42.16%
Obesity prevalence (BMI criteria)
28.09%
Abdominal obesity by waist circumference (WC), ATP III criterion
44.75%
Abdominal obesity by WC, IDF criterion
68.31%

Observational data: associations, not effects.

Further findings

Altitude differences, sea level vs high altitude (≥3000 m)

BMI difference
2.5-3.0 kg/m²
WC difference
4-6 cm
Waist-to-height ratio (WHtR) difference
0.04-0.06 units
  • Described as clinically significant

Original publication

Anthropometric percentiles for Peruvian adults: population reference curves for body mass index, waist circumference, and waist-to-height ratio. Int J Obes (Lond). Published 20 February 2026. doi:10.1038/s41366-026-02035-0

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