Dataset Information

A longitudinal study of facial growth of Southern Chinese in Hong Kong: Comprehensive photogrammetric analyses.

ABSTRACT:

Introduction

Existing studies on facial growth were mostly cross-sectional in nature and only a limited number of facial measurements were investigated. The purposes of this study were to longitudinally investigate facial growth of Chinese in Hong Kong from 12 through 15 to 18 years of age and to compare the magnitude of growth changes between genders.

Methods and findings

Standardized frontal and lateral facial photographs were taken from 266 (149 females and 117 males) and 265 (145 females and 120 males) participants, respectively, at all three age levels. Linear and angular measurements, profile inclinations, and proportion indices were recorded. Statistical analyses were performed to investigate growth changes of facial features. Comparisons were made between genders in terms of the magnitude of growth changes from ages 12 to 15, 15 to 18, and 12 to 18 years. For the overall face, all linear measurements increased significantly (p < 0.05) except for height of the lower profile in females (p = 0.069) and width of the face in males (p = 0.648). In both genders, the increase in height of eye fissure was around 10% (p < 0.001). There was significant decrease in nasofrontal angle (p < 0.001) and increase in nasofacial angle (p < 0.001) in both genders and these changes were larger in males. Vermilion-total upper lip height index remained stable in females (p = 0.770) but increased in males (p = 0.020). Nasofrontal angle (effect size: 0.55) and lower vermilion contour index (effect size: 0.59) demonstrated large magnitude of gender difference in the amount of growth changes from 12 to 18 years.

Conclusions

Growth changes of facial features and gender differences in the magnitude of facial growth were determined. The findings may benefit different clinical specialties and other nonclinical fields where facial growth are of interest.

SUBMITTER: Wen YF

PROVIDER: S-EPMC5650157 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Publications

A longitudinal study of facial growth of Southern Chinese in Hong Kong: Comprehensive photogrammetric analyses.

Wen Yi Feng YF Wong Hai Ming HM McGrath Colman Patrick CP

PloS one 20171020 10

<h4>Introduction</h4>Existing studies on facial growth were mostly cross-sectional in nature and only a limited number of facial measurements were investigated. The purposes of this study were to longitudinally investigate facial growth of Chinese in Hong Kong from 12 through 15 to 18 years of age and to compare the magnitude of growth changes between genders.<h4>Methods and findings</h4>Standardized frontal and lateral facial photographs were taken from 266 (149 females and 117 males) and 265 ( ...[more]

PMID: 29053713

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Project description:BACKGROUND:Fertility preservation for both medical and non-medical reasons are gaining increasing attention world-wide. This study aimed to evaluate the awareness, knowledge and acceptance on fertility preservation in Hong Kong Chinese. METHODS:This was a cross-sectional study carried out between June 2016 to March 2017. A self-administered questionnaire was distributed by convenience sampling. RESULTS:Forty two percent of subjects returned the questionnaire (n?=?296/697). Among them, only 54.3% were aware of any means of fertility preservation. Tertiary educated individuals are more aware than less educated individuals (73.6% versus 46.6%, p?<?0.001). The most commonly known method is oocyte cryopreservation (94.3%). Most of the respondents (80%) were interested to know about fertility preservation, 84.1% considered fertility preservation counselling necessary and 83.3% would consider undergoing fertility preservation if a treatment has a high chance of causing infertility despite the possibility of delay in cancer treatment. Up to 93.9% agreed to set up a dedicated referral centre with government funding and 73.4% agreed that fertility preservation for medical indication should be provided as a government funded service. In terms of fertility preservation for non-medical reason, 65.5 and 70.4% agreed that fertility preservation should be offered to single men and women without partner respectively, while only 53.3 and 50% agreed that fertility preservation is acceptable for delay in childbearing for career development in female and male respectively. CONCLUSION:There was a low awareness but positive attitude towards fertility preservation among Hong Kong Chinese. Acceptance towards medically indicated fertility preservation is high while a considerable number also accepts it for non-medical reasons. Educational campaigns are required to arouse awareness of fertility preservation to prevent individuals being deprived of the option due to lack of knowledge. Dedicated referral centre with established efficient patient referral pathways and financial support should be provided to improve the provision and uptake of fertility preservation service to enhance the reproductive potential and life options of women.

Dataset Information

A longitudinal study of facial growth of Southern Chinese in Hong Kong: Comprehensive photogrammetric analyses.

Introduction

Methods and findings

Conclusions

Publications

A longitudinal study of facial growth of Southern Chinese in Hong Kong: Comprehensive photogrammetric analyses.

Similar Datasets

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