Table 2.

Variable codes and explanations.

	Value	Explanation of variables
Age	1–4	1 = 50–59; 2 = 60–69; 3 = 70–79; 4 = over 80
Gender	1–2	1 = Male; 2 = Female
Marital status	1–2	1 = Married; 2 = Single
Living conditions	1–5	1 = Living alone; 2 = Living with partner only; 3 = Living with children; 4 = Living with partner and children; 5 = Living in a residential care facility
Monthly income	1–4	1 = Under ¥1,000; 2 = ¥1,000–¥2,000; 3 = ¥2,000–¥4,000; 4 = Over ¥4,000
Education level	1–5	1 = Less than junior middle school; 2 = Junior high school; 3 = High school (includes technical secondary school and professional high school); 4 = Junior college; 5 = College/Bachelor’s degree or above
Subjective well-being
Physical and mental health experience	1–6	From 1 (strongly disagree) to 6 (strongly agree) The higher the score, the higher the subjective well-being of the older people
Adaptation satisfaction experience
Self-development experiences
Older adult learning
Learning investment	1–6	From 1 (strongly disagree) to 6 (strongly agree) The higher the score, the higher the level of participation in learning by older people
Learning atmosphere
Learning experience