Table 1.

Proportion of residents undergoing a medical examination (ME) in the prior 12 months (Hunan of China, 2013).

Variable	N	Residents Undergoing ME	Proportion (95% CI)	Odds Ratio (95% CI)
Total	19,320	8703	45.6 (27.6–63.6)	NA
Location
Urban	9894	4325	47.2 (38.5–55.9)	1.0
Rural	9426	4378	45.1 (21.8–68.4)	0.9 (0.4–2.3)
Sex
Male	9472	4089	43.7 (24.9–62.5)	1.0
Female	9848	4614	47.4 (30.1–64.8)	1.2 (1.1–1.3) *
Age group
18–44 years	6889	2546	37.4 (17.5–57.3)	1.0
45–64 years	8620	3893	46.2 (28.8–63.5)	1.4 (1.2–1.8) **
≥65 years	3811	2264	59.6 (43.6–75.5)	2.5 (1.7–3.6) **
Household income Per Capita #
Lowest	4894	2493	42.7 (26.3–59.0)	1.0
Lower	3519	1690	44.1 (32.7–55.4)	1.1 (0.9–1.3)
Average	4312	1850	41.3 (23.0–59.6)	0.9 (0.8–1.1)
Higher	2757	1142	47.8 (29.3–66.4)	1.2 (1.0–1.5) *
Highest	3784	1511	49.4 (28.0–70.8)	1.3 (0.9–1.8)

CI: confidence interval. ^#: The incomes of some households were missing; Household income per capita included five categories: lowest (urban, <6667 Yuan; rural, <3334 Yuan); lower (urban, 6667–9999 Yuan; rural, 3334–4999 Yuan); average (urban, 10,000–14,999 Yuan; rural, 5000–7499 Yuan); higher (urban, 15,000–23,999 Yuan; rural, 7500–9999 Yuan); and highest (urban, ≥24,000 Yuan; rural, ≥10,000 Yuan). *: p < 0.05; **: p < 0.01. Note: The sum of sample sizes of subgroups was a little smaller than 19,320 because of the presence of missing values. Missing values were excluded from statistical analysis.