What was the primary objective of the study conducted by Kelly et al.?

The primary objective was to quantify the public's perception of attraction to breast shape by measuring opinions on various aesthetic elements and linking this to demographic factors.

What method did the researchers use to collect public opinion on breast shape preferences?

The researchers used a crowdsourcing survey technique via Amazon Mechanical Turk to collect public opinion.

What was the total number of survey responses collected, and how many were used for analysis?

A total of 1000 survey responses were collected, and 960 were used for analysis after removing unfinished or incorrectly finished surveys.

Which two breast characteristics showed the most notable preferences among all respondent groups?

The most notable preferences between all groups were breast projection proportion and nipple direction.

What percentage for breast width to shoulder width ratio was preferred by the crowd overall?

The preferred percentage for breast width to shoulder width ratio among the crowd was 105%.

According to the study, which gender preferred a higher breast width to upper buttock ratio?

More male participants preferred a higher breast width to upper buttock ratio (105%) than females.

What type of association was found between image number within each panel and average overall ranking for five of the breast characteristics?

For five characteristics, the association between image number within each panel and average overall ranking was classified as U-shaped.

Besides nipple direction and projection proportion, what other breast width ratio was significantly different based on ethnicity?

Besides breast width to upper buttock width, breast width to shoulder width ratios also showed significant differences by ethnicity.

What was the most preferred nipple direction according to the overall public?

The most preferred nipple direction according to the overall public was front-facing.

The study mentions a potential limitation regarding the image panels used. What is this limitation?

A potential limitation was that the image panels were taken from a previous study focused on Asian populations, and they may not fully convey the entire breadth of variation possible in each aesthetic characteristic.

← All episodes

Season 1, Episode 7

May 23, 2025 · Breast

IDEAL BREAST SHAPE

This episode describes a research paper performed by Dr. Shauly and his team investigating public preferences for various breast aesthetic characteristics using a crowdsourced survey tool. The study, conducted by a team of researchers including plastic surgeons and biostatisticians, surveyed 960 participants to understand which visual aspects of breast shape and proportion were considered most attractive. Key findings indicated a preference for specific projection, nipple direction, and width-to-shoulder ratios. The authors propose that these data can be valuable for plastic surgeons to better understand patient desires and improve outcomes in breast augmentation procedures, acknowledging limitations in the survey methodology and participant demographics.

Nip Talk: Ideal Breast Shape

Comprehensive Study Guide

Short Answer Questions

Please answer the following questions in 2-3 sentences each.

What was the primary objective of the study conducted by Kelly et al.?
AnswerThe primary objective was to quantify the public's perception of attraction to breast shape by measuring opinions on various aesthetic elements and linking this to demographic factors.
What method did the researchers use to collect public opinion on breast shape preferences?
AnswerThe researchers used a crowdsourcing survey technique via Amazon Mechanical Turk to collect public opinion.
What was the total number of survey responses collected, and how many were used for analysis?
AnswerA total of 1000 survey responses were collected, and 960 were used for analysis after removing unfinished or incorrectly finished surveys.
Which two breast characteristics showed the most notable preferences among all respondent groups?
AnswerThe most notable preferences between all groups were breast projection proportion and nipple direction.
What percentage for breast width to shoulder width ratio was preferred by the crowd overall?
AnswerThe preferred percentage for breast width to shoulder width ratio among the crowd was 105%.
According to the study, which gender preferred a higher breast width to upper buttock ratio?
AnswerMore male participants preferred a higher breast width to upper buttock ratio (105%) than females.
What type of association was found between image number within each panel and average overall ranking for five of the breast characteristics?
AnswerFor five characteristics, the association between image number within each panel and average overall ranking was classified as U-shaped.
Besides nipple direction and projection proportion, what other breast width ratio was significantly different based on ethnicity?
AnswerBesides breast width to upper buttock width, breast width to shoulder width ratios also showed significant differences by ethnicity.
What was the most preferred nipple direction according to the overall public?
AnswerThe most preferred nipple direction according to the overall public was front-facing.
The study mentions a potential limitation regarding the image panels used. What is this limitation?
AnswerA potential limitation was that the image panels were taken from a previous study focused on Asian populations, and they may not fully convey the entire breadth of variation possible in each aesthetic characteristic.

Key Terms

Aesthetic Outcomes: The visual or cosmetic results of a medical procedure, particularly in plastic surgery.
Amazon Mechanical Turk: A crowdsourcing platform where individuals complete various tasks, often for small compensation. Used in this study to collect survey responses.
Breast Augmentation: A surgical procedure to increase the size and fullness of the breasts, typically using implants.
Breast Projection Proportion: A measure of how far the breast extends outward from the chest wall, often viewed from a lateral perspective.
Breast Width To Shoulder Width Ratio: A comparison of the width of the breast to the width of the shoulders, typically viewed from the front.
Breast Width To Upper Buttock Width Ratio: A comparison of the width of the breast to the width of the upper buttocks, typically viewed from the front.
Crowdsourcing: Obtaining information, ideas, or tasks by soliciting input from a large group of people, typically online.
Demographic Factors: Characteristics of a population, such as age, gender, ethnicity, marital status, education level, and socioeconomic status.
Generalized Estimating Equation (GEE) Model: A statistical technique used to analyze correlated data, often used in studies with repeated measurements or clustered data.
Ideal Breast Shape: The perceived most attractive or aesthetically pleasing form of the female breast.
Image Panels: A set of images used in the survey to display variations in specific breast characteristics for respondents to rank.
Inframammary Fold (IMF): The crease or fold beneath the breast where it meets the chest wall.
Lower Pole Height To Breast Width Ratio: A comparison of the vertical distance from the nipple to the inframammary fold to the overall width of the breast.
Nipple Direction: The orientation of the nipple, often described in relation to the horizontal plane (e.g., front, upward, downward).
Plastic Surgery: A surgical specialty concerned with the restoration, reconstruction, or alteration of the human body.
Public Perception: The opinions and attitudes of the general population on a particular topic.
Randomized Image Panels: The presentation of image panels in a random order to survey participants to prevent bias.
Socioeconomic Status: An individual's or group's position within a hierarchical social structure, often based on factors like income, education, and occupation.
Upper Anterior Breast To Lower Anterior Breast Ratio: A comparison of the volume or fullness of the upper part of the breast to the lower part, often viewed from a lateral perspective.
Upper Breast Slope: The curvature or shape of the upper part of the breast, often viewed from a lateral perspective.
Upper Pole Height To Lower Pole Height: A comparison of the vertical distance from the clavicle to the nipple to the vertical distance from the nipple to the inframammary fold.
U-Shaped Association: A statistical relationship where the dependent variable initially decreases and then increases as the independent variable increases, forming a U-shape on a graph.
Vertical Nipple Position: The vertical location of the nipple in relation to other anatomical landmarks, such as the sternal notch or umbilicus.