• Imaging Science in Dentistry
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• v.51 no.4
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• pp.373-382
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• 2021

Purpose: Cone-beam computed tomography (CBCT) reconstructions were analysed to elucidate factors affecting the anatomical relationship between tooth roots and the mandibular canal(MC). Materials and Methods: Images of 300 volumetric tomography scans of patients aged between 20 and 79 years old (167 women and 133 men) were analysed. The mean distances between 2,053 dental root apices and the internal border of the MC were obtained by measuring the horizontal and vertical distances on coronal CBCT images. The actual distance was then calculated mathematically with the Pythagorean formula. The statistical significance of differences between men and women was assessed using the Mann-Whitney test. Correlations with patient age were evaluated with the Spearman rank correlation coefficient. Results: The mean distances ranged from 2.17 mm, for single right third molar roots in women, to 8.02 mm for single left third molar mesiolingual roots in men. The mean distances measured for the mandibular right second molar mesial roots and the right second premolar roots were larger in men than in women. Age showed a significant positive correlation with the measured distances for mesial and distal roots of the first and second molar on both sides and the right third molar, mesiolingual roots of the left third molar, and single roots of the right third molar. Conclusion: The root-to-mandibular canal distance depended on age and the type of tooth. In 2 root types, this distance was impacted by sex.

• Journal of Family Relations
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• v.23 no.3
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• pp.201-228
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• 2018

Objectives: The objectives of this study were to classify never-married types of adult men and women and explore factors related to these types. Never-married types were categorized into 4 types according to continuity and voluntariness: continuous voluntary type; changed voluntary type; continuous non-voluntary type; and changed non-voluntary type. Factors related to types of being single were examined in terms of socio-demographic factors, individual and psychological factors (self-esteem, depression), dating relationship factors (current relationship status), original family factors (parental conflict, relationship with parents, parents' demand for marriage), marriage related factors (division of roles after marriage), and occupation related factors (work values, employment instability). Method: As for research method, a survey was conducted with never-married adult men and women between the ages of 35 and 49 living in Seoul, Gyeonggi or Incheon areas. Of 300 copies of questionnaire distributed, data from 295 copies were processed using SPSS 24.0 program for multinomial logit analysis. Results: The study results showed that, of never-married men respondents, continuous voluntary type accounted for 20.5%; changed voluntary type 18.9%; continuous non-voluntary type 49.6%; and changed non-voluntary type 11.0%. It was found that the factors related to continuous non-voluntary type among never-married men are age, religion, average monthly income, while the factors related to changed voluntary type are religion, self-esteem, depression, and frequency and strength of parental conflict, while the factor related to changed non-voluntary type men was living with parents. Examining never-married women respondents, it was found that, continuous voluntary type accounted for 33.9%; changed non-voluntary type 19.6%; continuous non-voluntary type 22.6%; and changed voluntary type 23.8%. The factor related to continuous non-voluntary type among never-married women was parents' demand for marriage, while the factors related changed voluntary type were age, depression and strength of parental conflict. Also, the factors related to changed non-voluntary type of never-married women were age, religion, living with parents, depression and parents' demand for marriage. Conclusion: In conclusion, it was found that continuous non-voluntary type formed the largest group among never-married men, whereas continuous voluntary type was the majority in never-married women. Both never-married men and women chose to remain single when they are living with their parents and their parental conflict is intense. Parents' demand for marriage was related to women, but not to men.

• Journal of the Korean Home Economics Association
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• v.42 no.12 s.202
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• pp.93-106
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• 2004

This study examines the economic status and effect variables of expenditure of single elderly households using the 1996 Expenditure Survey of Urban Families from the Korea National Office. This study examined gender differences in total house income, expenditure and effect variables of expenditure. The results show that women had lower economic condition than men and that income is the most effective variable of expenditure for both. The result imply the need of employment and active support to improve household income especially for women who have a higher possibility of poverty.

• Women's Health Nursing
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• v.26 no.1
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• pp.93-103
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• 2020

Purpose: This study was conducted to identify unmet healthcare needs among man and woman one-person households and to explore related factors by gender. Methods: Data were drawn from the 2017 Korea National Health and Nutrition Examination Survey. The final sample consisted of 820 one-person households. The statistical analysis, conducted in SPSS version 20.1, included complex sampling analysis; descriptive statistics, the chi-square test, and logistic regression. Results: The demographic and socioeconomic characteristics of women in one-person households were significantly different from those of men in one-person households. Women in single-person households were mainly in their 70s or older and married, and they tended to have a low education level, low income, and no formal occupation. Unmet healthcare needs were experienced by 17.3% of women in one-person households and 13.5% of men in one-person households, which was not a statistically significant difference (χ²=2.17, p=.139). Factors related to unmet healthcare needs were subjective health status and unmet dental care needs in single-person-household men. By contrast, having experienced impairment within the past year, stress, and unmet dental care needs were factors related to unmet healthcare needs in single-person-household women. Conclusion: As one-person households become increasingly common, more attention needs to be paid to them and our understanding of them needs to be improved. Women in one-person households, in particular, are especially vulnerable, as they experience more unmet healthcare needs.

• Journal of Korean Public Health Nursing
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• v.23 no.2
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• pp.162-173
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• 2009

Purpose: This study investigated the health and socioeconomic status of single-parent and partnered families, and examined the intersection between sex and single-parent status focusing on inequalities of health and socioeconomic status. Methods: This was a cross-sectional study using the data from the nationally representative 2005 Korean National Health and Nutrition Examination Survey. A total of 14,827 respondents had custody of their own children and other family members (13,943 were coupled families and 891 were single-parent). Results: Our result indicate that single-parent had poorer health status and were more likely to have lower educational attainment, lower household income, no home ownership and be unemployed. However, the association between single-parent status and socioeconomic and health inequality were in divergent ways according to sex. The most socioeconomically disadvantaged were single-parent women. Inequalities in health differ markedly by sex but vary little according to single-parent status. Conclusions: An uneven distribution of socioeconomic resources might help us to understand why single-parent, both women and men, have worse health than parents who live together. Previously recognized sex gap with regard to health status also might help us to understand the difference in health between single-parent men and single-parent women found here.

• Journal of Korean Academy of Nursing
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• v.44 no.2
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• pp.159-169
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• 2014

Purpose: The purpose of this study was to test and validate a model to predict contraception behavior in unmarried men and women. Methods: Data were collected from a questionnaire survey of 180 unmarried men and 186 unmarried women 20 years of age or over who had sexual relationships in the past 6 months. Participants were from Seoul, Kyunggi, Daegu, and Busan and data collection was done from February 19 to April 16, 2013. Results: Model fit indices for the hypotheoretical model fitted to the recommended levels. Out of 15 paths, 11 were statistically significant in both. Predictors of contraception behavior in unmarried men and women were intention to use contraception and self-efficacy for contraception. Exposure to sexual content was directly significant to the intention in men only. Self-efficacy for contraception was affected by perceived threat of pregnancy and gender role attitude. In women, the two predictors were also significant except for the effect of exposure to sexual contents. Conclusion: Results indicate that an intervention program which increases self-efficacy in unmarried men and women contributes to effective contraception behavior. In addition, proper sexual education programs using positive aspect of mass media can help develop active participation for contraception behavior.

• Clinical and Experimental Reproductive Medicine
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• v.32 no.3
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• pp.279-286
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• 2005

Objective: Although several genetic factors have been associated with defects in human spermatogenesis, the unambiguous causative genes have not been elucidated. The male infertility by haploinsufficiency of PRM1 or PRM2 has been reported in mouse model. The aim of this study was to identify the single nucleotide polymorphisms (SNPs) of PRM1 and PRM2, related to the genotype of Korean infertile men. Methods: Genomic DNAs were extracted from peripheral bloods of infertile men with oligozoospermia or azoospermia, and analyzed using polymerase chain reaction (PCR) and direct sequencing. We carried out the direct sequencing analysis of amplified fragments in PRM1 (557 nucleotides from -42 to 515) and PRM2 (599 nucleotides from 49 to 648) genes, respectively. Results: Three SNPs of coding region in the PRM1 gene was found in the analysis of 130 infertile men. However, the SNPs at a133g (aa 96.9%, ag 3.1% and gg 0.0%), c160a (cc 99.2%, ca 0.8% and aa 0.0%) and c321a (cc 56.9%, ca 35.4% and aa 7.7%) coded the same amino acids, in terms of silence phenotypes. On the other hand, as results of the PRM2 gene sequencing in 164 infertile men, only two SNPs, g398c (gg 62.2%, gc 31.1% and ga 6.7%) and a473c (aa 63.4%, ac 29.9% and cc 6.7%), were identified in the intron of the PRM2 gene. Conclusions: There was no mutation and significant SNPs on PRM1 and PRM2 gene in Korean infertile men. These results suggest that the PRM1 and PRM2 genes are highly conserved and essential for normal fertility of men.

• Journal of the Korean Society of Costume
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• v.50 no.7
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• pp.155-163
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• 2000

The objectives of this study were to examine how clothing design preference and clothing attitude vary according to gender of the aging. Using the data collected through interview with 200 subjects who were 60years of age and older residing at Kunsan city area in Korea. These data were analyzed by frequency and $\chi$$^2$-test. The tendency of the gender on jacket stymie preference showed that men liked the soutien collar jacket, two button sing1e Jacket, and four button double jacket, women liked two button single jacket, three button single Jacket and four button double jacket. The general preference did allot depend on the practical purchasing. Men preferred more the soutien collar jacket than the women. On the shirts pattern preference, men liked thick horizon and plaid pattern, while the women liked polk dots pattern and small flowered one. The practical clothing purchase was done by themselves directly. The important criteria depended on the appearance style like simple and smart. For the main complaining factor to purchase the clothes, men considered the color, and women complained not to have suitable shopping stores. The most of all complaining was the expensive prices.

• Korean Journal of Human Ecology
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• v.23 no.2
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• pp.251-268
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• 2014

Applying the data from 64 single(26 men and 38 women) and 71 childless married men and women(37 men and 34 women) aged between 30 and 45, this study is to understand their future fertility intention. For this purpose, ideal and real number of children that participants plan to have were compared using paired t-test. Second, demographic variables(sex, age, marital status), child care related variables(thoughts about caring children, child care value), individual characteristics(gender role attitude, relation orientation) and social context variables(perceived economic condition, recognition of low fertility policies) were included in a stepwise regression model to explain expected number of children participants plan to have in the future. Results showed that ideal number of children participants wish to have was significantly higher than real number of children they expect to have in the Korean society. The stepwise regression model explained 35% of the variance of the dependent variable. Among four types of variables, child care related variables most powerfully explained expected number of children study participants plan to have in the future. Finally, age, child care value, gender role attitude, and relation orientation significantly explained expected number of children in the future.

• Journal of Family Resource Management and Policy Review
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• v.17 no.1
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• pp.63-79
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• 2013

The purpose of this study is to identify the factors that influence the willingness to marriage initiation(WMI) among the never married in their 30s. In particular, we examine the effect of financial resources on the WMI. A data set from the National Survey of Marriage and Childbirth (2009 Wave) were analyzed. We find that the effect of financial resources on the WMI are different by gender. Home ownership is a statistically significant factor in the logistic regression model for men, but not in the model for women. Women with higher earnings are more likely to be single and unemployed men are more likely to be single than employed men. In the Korean societal contexts, these findings support the bi-standard of financial resources between male and female in the marriage market.