Table 1.

Distribution of demographic characteristics and general socioeconomic indicators among different urban populations.

Characteristic	The population in the current study			Fujian coast urban population	Fujian urban Population
	1st year (2017)	Follow-up I (2018)	Follow-up II (2019)
Total number	15,397	12,144	11,762	9,936,850	3,495,356
Age distribution (years) (%)
18–29	14.9	14.1	14.2	15.8	16.1
30–39	17.7	17.0	17.1	18.5	17.4
40–49	19.8	20.5	19.7	21.4	19.5
50–59	20.8	21.0	20.6	19.2	20.2
60–69	17.1	17.8	18.9	15.5	17.3
≥70	9.7	9.6	9.5	9.6	9.5
Median (years)	41.8	41.9	42.0	41.1	42.2
Sex
Male	50.08	49.90	49.82	50.12	50.88
Female	49.92	50.10	50.18	49.88	49.12
Education
Lower	53.02	52.90	51.91	53.89	65.26
College/high school	46.98	47.10	48.09	46.11	34.74
Occupation
White-collar workers	34.1	33.9	33.1	34.0	32.6
Blue-collar workers	42.2	41.5	41.8	44.9	42.6
Unemployed, retired and housewives	23.7	24.6	25.1	21.1	24.8
Income
Low	20.1	19.3	18.3	21.2	29.5
Medium	63.0	63.6	64.1	62.4	57.3
High	16.9	17.1	17.6	16.4	13.2
Marital status
Married	73.1	72.5	70.9	74.3	74.7
Single	26.9	27.5	29.1	25.7	25.3