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Table 2 Age-adjusted odds ratios (aORs) for heterosexual inexperience and socioeconomic and regional factors among Japanese women and men aged 18 to 24 years and 25 to 39 years in 2010

From: Trends in heterosexual inexperience among young adults in Japan: analysis of national surveys, 1987–2015

 

18–24 years

25–39 years

 

Women

Men

Women

Men

 

aOR (95% CI)a

aOR (95% CI)a

aOR (95% CI)a

aOR (95% CI)a

Educationb c

 High school or less

Ref

Ref

 Vocational school or short college

1.10 (0.88 to 1.38)

0.86 (0.68 to 1.08)

 Undergraduate studies

1.60 (1.26 to 2.02)

0.69 (0.57 to 0.84)

 Graduate studies

2.40 (1.39 to 4.14)

0.77 (0.53 to 1.11)

 p

  

< 0.001

0.001

Occupational Status

 Regular employee

Ref

Ref

Ref

Ref

 Part-time or temporary worker

1.19 (0.90 to 1.57)

1.55 (1.09 to 2.20)

0.86 (0.69 to 1.07)

3.82 (3.04 to 4.80)

 Business owner or family business

0.85 (0.30 to 2.41)

1.17 (0.52 to 2.63)

0.61 (0.36 to 1.05)

0.94 (0.64 to 1.36)

 Unemployed

0.68 (0.47 to 0.99)

3.21 (2.07 to 4.99)

0.36 (0.27 to 0.47)

7.87 (6.06 to 10.23)

 Student

1.58 (1.22 to 2.05)

1.90 (1.49 to 2.42)

1.19 (0.43 to 3.29)

4.76 (2.51 to 9.03)

 p

0.014

< 0.001

< 0.001

< 0.001

Annual Income (in JPY 10,000s)

 0–99

Ref

Ref

Ref

Ref

 100–299

0.78 (0.62 to 0.98)

0.56 (0.44 to 0.72)

2.19 (1.76 to 2.72)

0.49 (0.39 to 0.60)

 300–499d

0.92 (0.57 to 1.50)

0.35 (0.23 to 0.51)

1.86 (1.42 to 2.43)

0.20 (0.16 to 0.25)

 500–799e

1.95 (1.05 to 3.59)

0.09 (0.06 to 0.13)

  ≥ 800

0.05 (0.01 to 0.19)

 

0.114

< 0.001

< 0.001

< 0.001

Region of Residence

 Kanto

Ref

Ref

Ref

Ref

 Chubu

0.70 (0.54 to 0.91)

0.91 (0.69 to 1.20)

1.00 (0.77 to 1.29)

0.84 (0.67 to 1.07)

 Kinki

0.90 (0.67 to 1.21)

0.63 (0.47 to 0.87)

1.41 (1.08 to 1.83)

1.15 (0.90 to 1.47)

 Kyushu/Okinawa

0.68 (0.50 to 0.94)

0.60 (0.43 to 0.82)

0.69 (0.49 to 0.98)

0.61 (0.45 to 0.83)

 Chugoku/Shikoku

0.99 (0.68 to 1.43)

0.71 (0.49 to 1.05)

0.91 (0.64 to 1.29)

0.75 (0.55 to 1.04)

 Tohoku

0.68 (0.46 to 0.99)

0.69 (0.46 to 1.05)

0.86 (0.58 to 1.27)

1.00 (0.73 to 1.38)

 Hokkaido

0.93 (0.56 to 1.55)

0.63 (0.36 to 1.11)

0.67 (0.37 to 1.21)

0.37 (0.19 to 0.71)

 p

0.209

0.001

0.091

0.011

Population Density and Size of Residence

 Non-densely inhabited area

Ref

Ref

Ref

Ref

  < 200,000

1.05 (0.81 to 1.35)

1.04 (0.79 to 1.37)

0.97 (0.75 to 1.24)

0.89 (0.71 to 1.11)

 200,000 to < 1,000,000

0.77 (0.60 to 1.00)

0.97 (0.74 to 1.25)

0.95 (0.75 to 1.20)

1.03 (0.83 to 1.28)

  ≥ 1,000,000

0.94 (0.73 to 1.22)

1.01 (0.77 to 1.33)

0.81 (0.62 to 1.06)

0.74 (0.58 to 0.95)

 p

0.257

0.928

0.144

0.093

  1. aAdjusted for age as a continuous variable. Heterosexual inexperience was coded as 0 = has experience; 1 = has no experience
  2. bCurrently enrolled students were categorized according to their ongoing education
  3. cEducation was not analyzed in 18–24 year-old women and men because most adults in younger age groups may not have concluded their studies
  4. d≥ JPY 300 for 18–24-year-olds
  5. e≥ JPY 500 for 25–39-year old women
  6. aOR age-adjusted odds ratio, JPY Japanese Yen