Table 1

Characteristics of participants

N (%)
TotalMaleFemale
Overall11 333(100)5391(100)5942(100)
Age (years)
 18–393888(34.3)1077(20.0)2811(47.3)
 40–646024(53.2)3295(61.1)2729(45.9)
 ≥651421(12.5)1019(18.9)402(6.8)
Occupation
 Employed7685(67.8)4235(78.6)3450(58.1)
 Homemaker1806(15.9)25(0.5)1781(30.0)
 Student407(3.6)122(2.3)285(4.8)
 Unemployed1068(9.4)808(15.0)260(4.4)
 Other367(3.2)201(3.7)166(2.8)
Annual household income (JPY)
 <2.0 million633(5.6)308(5.7)325(5.5)
 2.0–3.9 million1990(17.6)947(17.6)1043(17.6)
 4.0–5.9 million2214(19.5)1150(21.3)1064(17.9)
 6.0–7.9 million1495(13.2)818(15.2)677(11.4)
 ≥8.0 million2130(18.8)1247(23.1)883(14.9)
 Unknown2871(25.3)921(17.1)1950(32.8)
Marital status (married)7043(62.1)3492(64.8)3551(59.8)
The presence of child (yes)6072(53.6)3091(57.3)2981(50.2)