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. 2020 Aug 28;2(35):678–683. doi: 10.46234/ccdcw2020.188

Table 1. Awareness rate of the maximum daily salt intake among Chinese adults aged 18 years old and above — China, 2015.

Characteristics Total Men Women Urban Rural
N Prevalence/%
(95% CI*)
N Prevalence/%
(95% CI)
N Prevalence/%
(95% CI)
N Prevalence/%
(95% CI)
N Prevalence/%
(95% CI)
*CI=confidence interval.
N=Number of participants.
§Participants answering “don’t know or refuse” were not included in the trend test.
Total 180,904 6.1(5.2–6.9) 84,407 5.4(4.7–6.2) 96,497 6.7(5.7–7.7) 73,738 9.3(7.7–10.9) 107,166 2.6(2.2–3.0)
Age (years)
18–29 15,881 6.2(5.2–7.2) 7,078 4.9(4.0–5.8) 8,803 7.6(6.3–8.9) 6,636 9.2(7.4–10.9) 9,245 2.6(2.0–3.2)
30–39 21,740 7.8(6.6–9.0) 9,704 6.3(5.1–7.5) 12,036 9.3(7.7–10.9) 9,415 10.5(8.3–12.7) 12,325 4.4(3.3–5.4)
40–49 39,965 6.5(5.5–7.5) 17,954 6.2(5.1–7.2) 22,011 6.8(5.7–7.8) 15,174 9.7(7.9–11.6) 24,791 3.1(2.5–3.7)
50–59 44,221 4.8(3.8–5.7) 20,354 4.6(3.7–5.5) 23,867 4.9(3.8–6.0) 17,702 8.2(6.4–10.0) 26,519 1.6(1.3–1.9)
60–69 40,093 4.6(3.6–5.5) 19,461 4.7(3.9–5.5) 20,632 4.5(3.3–5.6) 16,659 8.6(6.8–10.4) 23,434 1.4(1.0–1.8)
70+ 19,004 4.2(3.5–5.0) 9,856 5.2(4.2–6.1) 9,148 3.4(2.6–4.2) 8,152 8.4(6.9–9.9) 10,852 0.9(0.5–1.4)
p value for trend <0.001 0.449 <0.001 0.130 <0.001
Geographic Location
Eastern 67,378 7.6(5.9–9.3) 31,273 6.7(5.3–8.1) 36,105 8.5(6.5–10.6) 33,247 9.9(7.1–12.7) 34,131 4.1(3.1–5.1)
Central 51,539 5.1(4.0–6.3) 24,131 4.6(3.5–5.8) 27,408 5.6(4.3–6.9) 21,038 8.9(6.6–11.2) 30,501 1.9(1.6–2.1)
Western 61,987 4.7(3.6–5.8) 29,003 4.3(3.3–5.3) 32,984 5.1(3.7–6.5) 19,453 8.6(6.5–10.8) 42,534 1.7(1.2–2.3)
p value for difference 0.002 0.007 0.003 0.727 <0.001
Education
Primary or less 88,819 1.0(0.8–1.2) 35,105 1.1(0.9–1.4) 53,714 0.9(0.6–1.1) 24,514 1.8(1.3–2.3) 64,305 0.6(0.4–0.7)
Junior High 55,243 4.2(3.6–4.8) 29,964 3.9(3.3–4.4) 25,279 4.6(3.9–5.3) 23,296 5.8(4.6–7.0) 31,947 2.8(2.3–3.2)
Senior High 23,346 10.1(8.4–11.8) 12,796 8.1(6.5–9.7) 10,550 12.9(10.8–15.0) 14,555 11.8(9.2–14.4) 8,791 6.7(5.6–7.7)
College or above 13,496 17.8(15.6–20.0) 6,542 14.1(12.2–15.9) 6,954 21.7(18.9–24.5) 11,373 18.3(15.9–20.7) 2,123 14.3(9.4–19.2)
p value for trend <0.001 <0.001 <0.001 <0.001 <0.001
Family per capita income, CNY
Q1 (<6,000) 45,278 2.7(2.1–3.2) 21,699 2.7(1.9–3.5) 23,579 2.6(2.1–3.2) 9,531 4.4(3.1–5.7) 35,747 2.0(1.5–2.5)
Q2 (6,000–11,999) 38,741 4.3(3.7–4.9) 18,059 4.4(3.6–5.1) 20,682 4.3(3.5–5.0) 12,536 6.5(5.2–7.8) 26,205 2.7(2.3–3.2)
Q3 (12,000–21,599) 36,932 7.2(6.2–8.1) 17,022 6.2(5.3–7.1) 19,910 8.2(7.1–9.4) 19,546 9.2(7.9–10.5) 17,386 3.7(3.0–4.4)
Q4 (21,600+) 29,527 12.5(10.1–14.8) 13,780 10.4(8.5–12.3) 15,747 14.7(11.8–17.6) 21,114 14.4(11.4–17.3) 8,413 4.8(2.7–6.9)
Don’t know/refused§ 30,426 4.1(2.7–5.6) 13,847 3.6(2.5–4.8) 16,579 4.7(2.8–6.6) 11,011 7.1(4.1–10.0) 19,415 1.6(1.2–1.9)
p value for trend <0.001 <0.001 <0.001 <0.001 <0.001
Employment status
Employed 130,625 6.1(5.3–6.9) 68,241 5.3(4.6–6.0) 62,384 7.1(6.0–8.2) 44,637 9.5(7.9–11.2) 85,988 2.8(2.4–3.3)
Housework 25,112 2.2(1.7–2.7) 4,597 1.6(1.0–2.3) 20,515 2.3(1.8–2.8) 9,098 3.6(2.5–4.6) 16,014 1.2(0.8–1.6)
Retired 16,606 14.3(12.3–16.2) 7,624 12.2(10.6–13.7) 8,982 16.0(13.6–18.5) 15,010 15.2(13.1–17.2) 1,596 4.8(2.4–7.3)
Unemployed 8,561 5.6(4.0–7.2) 3,945 4.3(2.7–5.8) 4,616 6.9(4.8–9.0) 4,993 7.6(5.3–9.9) 3,568 2.1(1.3–2.9)
p value for difference <0.001 <0.001 <0.001 <0.001 <0.001
Body weight status (BMI categories)
Underweight, BMI<18.5 6,822 4.7(3.2–6.3) 2,986 2.8(1.4–4.2) 3,836 6.3(4.3–8.2) 2,177 7.4(4.1–10.7) 4,645 1.9(1.2–2.6)
Normal weight,
BMI: 18.5–23.9
85,129 6.0(5.1–6.8) 40,103 4.4(3.9–5.0) 45,026 7.3(6.2–8.5) 31,491 9.7(8.2–11.2) 53,638 2.2(1.8–2.6)
Overweight,
BMI: 24–27.9
63,232 6.1(5.2–7.0) 29,975 6.1(5.2–7.1) 33,257 6.1(5.2–7.1) 27,898 9.1(7.5–10.7) 35,334 2.9(2.3–3.5)
Obesity, BMI≥28 25,721 6.8(5.5–8.0) 11,343 7.6(6.2–8.9) 14,378 5.8(4.3–7.3) 12,172 9.4(7.1–11.7) 13,549 3.6(2.9–4.2)
p value for trend 0.014 <0.001 0.006 0.910 <0.001
Hypertension
Yes 71,642 6.4(5.5–7.4) 35,181 5.3(4.5–6.0) 36,461 7.5(6.3–8.7) 28,940 9.7(7.9–11.4) 42,702 2.8(2.3–3.2)
No 109,262 5.2(4.4–5.9) 49,226 5.7(4.9–6.6) 60,036 4.4(3.7–5.1) 44,798 8.5(7.0–9.9) 64,464 2.2(1.8–2.6)
p value for difference <0.001 0.207 <0.001 0.025 0.002