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Table 1 Extrapolation of the characteristics of adults, aged 18 to 39 years, from the 2010 National Fertility Survey to all Japanese adults aged 18 to 39 years, by sex and heterosexual experience status. Numbers are shown in 1000s

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

  Women (N = 16,330) Men (N = 16,860)
  All Heterosexual experience All Heterosexual experience
   No (n = 3256 [19.9%]) Yes (n = 13,074 [80.1%])   No (n = 3795 [22.5%]) Yes (n = 13,065 [77.5%])
  n (%) n (%) n (%) n (%) n (%) n (%)
Age
 18–19 1145 (7.0) 817 (25.1) 327 (2.5) 1210 (7.2) 877 (23.1) 327 (2.5)
 20–24 3034 (18.6) 1146 (35.2) 1883 (14.4) 3143 (18.6) 1249 (32.9) 1894 (14.5)
 25–29 3457 (21.2) 661 (20.3) 2798 (21.4) 3555 (21.1) 653 (17.2) 2900 (22.2)
 30–34 3985 (24.4) 345 (10.6) 3635 (27.8) 4105 (24.3) 524 (13.8) 3580 (27.4)
 35–39 4710 (28.8) 287 (8.8) 4419 (33.8) 4846 (28.7) 493 (13.0) 4351 (33.3)
Marital Status
 Unmarried 9071 (55.6) 3256 (100) 5818 (44.5) 10,695 (63.4) 3795 (100) 6898 (52.8)
 Married 7259 (44.4) 0 (0) 7256 (55.5) 6165 (36.6) 0 (0) 6167 (47.2)
Educationa
 High school or less 6126 (37.5) 1031 (31.7) 5087 (38.9) 7471 (44.3) 1645 (43.3) 5827 (44.6)
 Vocational school or short college 5930 (36.3) 978 (30.0) 4955 (37.9) 2880 (17.1) 614 (16.2) 2268 (17.4)
 Undergraduate studies 4020 (24.6) 1194 (36.7) 2834 (21.7) 5672 (33.6) 1386 (36.5) 4285 (32.8)
 Graduate studies 254 (1.6) 53 (1.6) 198 (1.5) 837 (5.0) 151 (4.0) 686 (5.2)
Occupational Status
 Regular employee 5280 (32.3) 1065 (32.7) 4213 (32.2) 10,401 (61.7) 1256 (33.1) 9129 (69.9)
 Part-time or temporary worker 4625 (28.3) 778 (23.9) 3848 (29.4) 1981 (11.7) 612 (16.1) 1367 (10.5)
 Business owner or family business 559 (3.4) 51 (1.6) 501 (3.8) 1244 (7.4) 121 (3.2) 1121 (8.6)
 Unemployed 4138 (25.3) 304 (9.3) 3834 (29.3) 1119 (6.6) 535 (14.1) 588 (4.5)
 Student 1728 (10.6) 1058 (32.5) 677 (5.2) 2115 (12.5) 1272 (33.5) 861 (6.6)
Annual Income (in JPY 10,000s)b
 0–99 9057 (55.5) 1920 (59.0) 7144 (54.6) 5005 (29.7) 2333 (61.5) 2675 (20.5)
 100–299 4821 (29.5) 981 (30.1) 3841 (29.4) 4092 (24.3) 906 (23.9) 3189 (24.4)
 300–499 2101 (12.9) 321 (9.9) 1779 (13.6) 5468 (32.4) 485 (12.8) 4986 (38.2)
 500–799c 351 (2.1) 34 (1.0) 310 (2.4) 1992 (11.8) 67 (1.8) 1919 (14.7)
  ≥ 800 303 (1.8) 4 (0.1) 297 (2.3)
Region of Residenced
 Kanto 5455 (33.4) 1123 (34.5) 4327 (33.1) 5617 (33.3) 1355 (35.7) 4259 (32.6)
 Chubu 3277 (20.1) 632 (19.4) 2641 (20.2) 3379 (20.0) 778 (20.5) 2600 (19.9)
 Kinki 2531 (15.5) 596 (18.3) 1935 (14.8) 2486 (14.7) 607 (16.0) 1881 (14.4)
 Kyushu/Okinawa 1891 (11.6) 316 (9.7) 1582 (12.1) 2016 (12.0) 376 (9.9) 1646 (12.6)
 Chugoku/Shikoku 1377 (8.4) 274 (8.4) 1098 (8.4) 1496 (8.9) 304 (8.0) 1189 (9.1)
 Tohoku 1247 (7.6) 218 (6.7) 1033 (7.9) 1328 (7.9) 300 (7.9) 1032 (7.9)
 Hokkaido 553 (3.4) 101 (3.1) 458 (3.5) 539 (3.2) 80 (2.1) 457 (3.5)
Area of residence: population size and density
 Non-densely inhabited area 5498 (33.7) 1146 (35.2) 4354 (33.3) 5732 (34.0) 1309 (34.5) 4429 (33.9)
  < 200,000 3492 (21.4) 700 (21.5) 2798 (21.4) 3725 (22.1) 827 (21.8) 2900 (22.2)
 200,000 to < 1,000,000 3996 (24.5) 729 (22.4) 3269 (25.0) 4096 (24.3) 941 (24.8) 3162 (24.2)
  ≥ 1,000,000 3344 (20.5) 681 (20.9) 2667 (20.4) 3307 (19.6) 721 (19.0) 2587 (19.8)
Wish to get married in lifetime
 No 461 (14.2) 653 (17.2)
 Yes 2795 (85.8) 3142 (82.8)
  1. aCurrently enrolled students were categorized according to their ongoing education
  2. bIncome was categorized according to the individual’s revenues. 10,000 JPY was approximately 78 Euro as of June 2018
  3. c≥ JPY 500 for women
  4. dThe seven regions constitute geographically clustered prefectures (the highest administrative divisions of Japan) and are often used in discussion of regional economic and policy issues in the country. The regions are shown by population size
  5. JPY, Japanese Yen