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. 2018 Jul 2;13(7):e0199510. doi: 10.1371/journal.pone.0199510

Table 4. Topic modeling results.

Cluster ID Topic Labels #Articles Loading (σ)
Medicine 1 Drug dependence and disorders among the youth in different social classes 443(3.16%) 0.33(0.79)
Medicine 2 Skeletal, dental and cranial anthropology and social stratification throughout history 346(2.46%) 0.34(0.61)
Social 3 Social class schema and theoretical debates 584(4.16%) 0.27(1.7)
Medicine 4 Preventive health inequality 252(1.80%) 0.32(0.65)
Social 5 Globalization, modernization and social class evolution 1172(8.35%) 0.41(1.49)
Medicine 6 Heart disease, work environment and social inequality 348(2.48%) 0.37(0.57)
Social 7 Discrimination, social value and gender and racial inequality 396(2.82%) 0.29(0.93)
Medicine 8 Cancer and social inequality 359(2.56%) 0.43(0.5)
Social 9 Education and social inequality 1093(7.79%) 0.41(1.48)
Social 10 Criminal justice, terrorism, lifestyle exposure and victimization in different social classes 266(1.89%) 0.32(0.43)
Medicine 11 Cognitive abilities and socioeconomic statues 486(3.46%) 0.4(0.76)
Social 12 Stereotype, ideological orientations and social inequalities 441(3.14%) 0.38(0.91)
Medicine 13 Mortality and social inequality 741(5.28%) 0.44(1.21)
Medicine 14 Community health, intervention and social inequality in multicultural contexts 832(5.93%) 0.34(1.79)
Social 15 Sociolinguistic research and social inequality 301(2.14%) 0.35(0.49)
Social 16 Income inequality, labor market reform and industrial relations 729(5.19%) 0.37(1.38)
Medicine 17 Prenatal care and childhood mental health in different social classes 563(4.01%) 0.34(1.07)
Social 18 Political election and party choices in different social classes 372(2.65%) 0.4(0.62)
Medicine 19 Spatio-temporal inequality, environmental inequality and healthcare 486(3.46%) 0.34(0.92)
Medicine 20 Smoking, diet and active health promotion activities in different social classes 558(3.97%) 0.38(0.75)
Medicine 21 Childhood social class and adulthood health 504(3.59%) 0.37(0.78)
Social 22 Urban inequalities, corporate social responsibility and public policy in connected capitalism 1007(7.17%) 0.44(1.44)
Medicine 23 Oral health and social inequality 659(4.69%) 0.32(1.19)
Medicine 24 Developmental psychology and parents’ child-rearing values and practices 549(3.91%) 0.32(0.94)
Medicine 25 Pathways of social inequalities and psychosocial health 551(3.93%) 0.27(1.6)