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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Personal and social norms for food portion sizes in lean and obese adults
|
|---|---|
| Published in |
International Journal of Obesity, April 2015
|
| DOI | 10.1038/ijo.2015.47 |
| Pubmed ID | |
| Authors |
H B Lewis, S E Forwood, A L Ahern, K Verlaers, E Robinson, S Higgs, S A Jebb |
| Abstract |
Portion size is an important component of dietary advice for weight control, but little is known about what portion sizes people consider 'normal'. This study determined the effect of BMI, gender, dietary restraint, and liking of the food on personal and social portion size norms for a range of foods, and the degree of certainty over the norms. 30 lean (BMI 20-25 kg/m(2)) and 30 obese (BMI 30-35 kg/m(2)) men and women (aged 18-60years) viewed 17 different portion sizes of 12 foods on a computer screen on two occasions a week apart. Participants responded 'more' or 'less' to each photograph reflecting personal portion size preference or perceived portion sizes of others. Personal and social norms for portion sizes of each food were determined using the method of constant stimuli giving a sigmoidal curve of the probability of answering 'less' over a range of portion sizes. The slope of the sigmoid at the norm gave a measure of certainty about the norm. Regression models were used to examine the effect of BMI, gender, dietary restraint and liking of the food on personal norms, social norms, the relationship between norms, and the slopes. Personal norms were significantly larger in the obese (P=0.026), men (P<0.001), those with lower dietary restraint (P<0.001), and those with higher liking for the food (P<0.001). Social norms were larger for women (P=0.012). The slopes at the norms were 30% shallower in the obese and in men (P<0.001). Larger personal norms for portion size among the obese, men, those with lower dietary restraint, and those with higher liking for a food imply greater consumption, which may undermine weight control. Shallower slopes for norms in the obese and in men may imply less clearly defined habitual portion sizes.International Journal of Obesity accepted article preview online, 14 April 2015. doi:10.1038/ijo.2015.47. |
X Demographics
The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 33% |
| Unknown | 2 | 67% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 33% |
| Members of the public | 1 | 33% |
| Practitioners (doctors, other healthcare professionals) | 1 | 33% |
Mendeley readers
The data shown below were compiled from readership statistics for 84 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 1 | 1% |
| Unknown | 83 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 14 | 17% |
| Student > Bachelor | 9 | 11% |
| Student > Doctoral Student | 8 | 10% |
| Researcher | 8 | 10% |
| Lecturer | 6 | 7% |
| Other | 15 | 18% |
| Unknown | 24 | 29% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 17 | 20% |
| Social Sciences | 8 | 10% |
| Medicine and Dentistry | 7 | 8% |
| Nursing and Health Professions | 7 | 8% |
| Business, Management and Accounting | 4 | 5% |
| Other | 15 | 18% |
| Unknown | 26 | 31% |
Attention Score in Context
This research output has an Altmetric Attention Score of 11. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 August 2015.
All research outputs
#2,756,021
of 22,815,414 outputs
Outputs from International Journal of Obesity
#1,333
of 4,317 outputs
Outputs of similar age
#37,204
of 264,279 outputs
Outputs of similar age from International Journal of Obesity
#41
of 75 outputs
Altmetric has tracked 22,815,414 research outputs across all sources so far. Compared to these this one has done well and is in the 87th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 4,317 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 23.7. This one has gotten more attention than average, scoring higher than 69% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 264,279 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 85% of its contemporaries.
We're also able to compare this research output to 75 others from the same source and published within six weeks on either side of this one. This one is in the 45th percentile – i.e., 45% of its contemporaries scored the same or lower than it.