Conicity Index: Females, Age 80+

Page updated: Evidence reviewed: What this means

What these numbers mean

A value around 1.363 index is typical (50th percentile) for females in this age group. The middle 50% of the reference population fall between about 1.313 index and 1.421 index; values below or above that central range sit in the lower or upper half of the distribution.

These are US population percentiles pooled across NHANES survey periods from 2015 through 2023. They describe how a value ranks within the same sex and age bracket; they are not diagnostic cut-offs.

Also see: 75-79 · All ages

Data source: NHANES (CDC), derived Conicity Index percentiles (2026) · n=535 About this study

Reference population: US adults aged 20 and over from NHANES survey periods spanning 2015-2023 after excluding participants recorded as pregnant, nationally representative

Conicity Index Body Composition Females 80+

Conicity Index Percentile Chart (index)

Very low 1.226 index
Low 1.313 index
Average 1.363 index
High 1.421 index
Very high 1.498 index
Conicity Index percentile distribution chart for Females, age 80+ 5th 5th: 1.226 index (Very low) 1.226 Very low 25th 25th: 1.313 index (Low) 1.313 Low 50th 50th: 1.363 index (Average) 1.363 Average 75th 75th: 1.421 index (High) 1.421 High 95th 95th: 1.498 index (Very high) 1.498 Very high 0 0.3 0.6 1.0 1.3 1.6 index Conicity Index percentile distribution chart for Females, age 80+ 5th 5th: 1.226 index (Very low) 1.226 Very low 25th 25th: 1.313 index (Low) 1.313 Low 50th 50th: 1.363 index (Average) 1.363 Average 75th 75th: 1.421 index (High) 1.421 High 95th 95th: 1.498 index (Very high) 1.498 Very high 0 0.3 0.6 1.0 1.3 1.6 index

This percentile chart shows how common a value is, not whether it is healthy.

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Other age brackets
20-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-79 All
Males data Males, 80+
Age trend

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