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

Table 2. Behavior rate of salt reduction 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 37.3(35.5−39.1) 84,407 33.8(32.1−35.4) 96,497 40.9(38.8−43.0) 73,738 44.6(42.4−46.7) 107,166 29.7(27.6−31.7)
Age (years old)
18−29 15,881 32.3(30.4−34.2) 7,078 27.4(25.1−29.6) 8,803 37.3(35.0−39.5) 6,636 36.0(33.6−38.5) 9,245 27.6(25.2−30.1)
30−39 21,740 39.6(37.2−42.0) 9,704 35.5(33.3−37.7) 12,036 43.8(40.8−46.9) 9,415 47.0(44.0−50.0) 12,325 30.1(27.9−32.4)
40−49 39,965 39.5(37.5−41.6) 17,954 36.9(34.9−38.9) 22,011 42.2(39.8−44.7) 15,174 48.0(45.4−50.7) 24,791 30.7(28.5−32.9)
50−59 44,221 38.8(36.8−40.8) 20,354 35.2(33.3−37.2) 23,867 42.5(40.2−44.7) 17,702 47.1(44.6−49.6) 26,519 31.2(28.9−33.5)
60−69 40,093 38.7(36.4−41.0) 19,461 35.5(33.2−37.8) 20,632 41.9(39.5−44.4) 16,659 48.3(45.7−51.0) 23,434 31.0(28.2−33.8)
70+ 19,004 35.9(32.6−39.2) 9,856 35.0(32.1−37.8) 9,148 36.7(32.5−40.8) 8,152 47.8(44.1−51.6) 10,852 26.3(22.7−30.0)
p value for trend 0.001 <0.001 0.309 <0.001 0.448
Geographic Location
Eastern 67,378 44.6(41.9−47.2) 31,273 40.7(38.1−43.2) 36,105 48.6(45.5−51.6) 33,247 49.2(45.8−52.6) 34,131 37.4(34.0−40.9)
Central 51,539 33.2(30.3−36.1) 24,131 29.8(27.4−32.3) 27,408 36.6(33.1−40.0) 21,038 40.1(36.4−43.7) 30,501 27.4(24.3−30.5)
Western 61,987 30.5(27.3−33.8) 29,003 27.4(24.4−30.5) 32,984 33.7(30.1−37.4) 19,453 39.7(35.4−43.9) 42,534 23.6(20.0−27.2)
p value for difference <0.001 <0.001 <0.001 <0.001 <0.001
Education
Primary or less 88,819 29.3(27.3−31.2) 35,105 25.5(23.8−27.3) 53,714 31.9(29.7−34.1) 24,514 36.3(33.4−39.2) 64,305 25.8(23.8−27.8)
Junior High 55,243 36.4(34.5−38.4) 29,964 32.0(30.2−33.8) 25,279 41.9(39.5−44.4) 23,296 42.3(39.8−44.8) 31,947 31.2(28.9−33.5)
Senior High 23,346 44.2(42.2−46.2) 12,796 39.7(37.8−41.7) 10,550 50.4(47.8−52.9) 14,555 48.2(45.4−51.1) 8,791 35.8(33.2−38.4)
College or above 13,496 50.7(48.5−52.9) 6,542 46.1(43.2−49.0) 6,954 55.4(52.5−58.4) 11,373 51.4(49.0−53.8) 2,123 45.4(39.8−50.9)
p value for trend <0.001 <0.001 <0.001 <0.001 <0.001
Family per capita income, CNY
Q1 (<6,000) 45,278 30.1(27.8−32.5) 21,699 26.6(24.5−28.6) 23,579 33.7(30.8−36.5) 9,531 35.9(32.3−39.5) 35,747 27.9(25.2−30.6)
Q2 (6,000−11,999) 38,741 34.8(32.7−36.9) 18,059 31.4(29.1−33.6) 20,682 38.2(35.9−40.5) 12,536 40.9(37.7−44.1) 26,205 30.4(28.1−32.6)
Q3 (12,000−21,599) 36,932 41.9(39.7−44.2) 17,022 37.9(35.7−40.2) 19,910 46.1(43.1−49.1) 19,546 46.4(43.9−48.9) 17,386 34.4(31.7−37.1)
Q4 (21,600+) 29,527 49.2(46.5−52.0) 13,780 45.0(42.3−47.6) 15,747 53.8(50.6−56.9) 21,114 52.0(48.6−55.4) 8,413 37.9(33.6−42.1)
Don’t know/refused§ 30,426 30.7(27.7−33.7) 13,847 27.6(24.6−30.5) 16,579 33.6(30.0−37.3) 11,011 38.1(33.5−42.6) 19,415 24.1(21.5−26.8)
p value for trend <0.001 <0.001 <0.001 <0.001 <0.001
Employment status
Employed 130,625 36.4(34.4−38.3) 68,241 33.2(31.5−34.8) 62,384 40.4(38.0−42.8) 44,637 43.7(41.5−45.9) 85,988 29.3(27.3−31.4)
Housework 25,112 35.9(33.1−38.8) 4,597 28.2(24.2−32.2) 20,515 37.4(34.6−40.3) 9,098 43.9(40.2−47.6) 16,014 30.3(26.8−33.8)
Retired 16,606 57.2(54.2−60.3) 7,624 53.4(50.4−56.3) 8,982 60.6(57.1−64.0) 15,010 58.7(55.5−61.8) 1,596 42.3(34.6−50.1)
Unemployed 8,561 34.9(31.5−38.2) 3,945 30.5(26.0−35.0) 4,616 38.9(35.6−42.3) 4,993 37.3(32.4−42.2) 3,568 30.5(26.5−34.5)
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 27.5(23.3−31.6) 2,986 23.2(18.3−28.2) 3,836 30.9(26.8−35.0) 2,177 31.8(23.0−40.5) 4,645 23.0(20.5−25.5)
Normal weight, BMI:18.5−23.9 85,129 35.1(33.2−36.9) 40,103 29.5(28.0−31.0) 45,026 40.2(37.7−42.6) 31,491 42.3(39.9−44.6) 53,638 27.8(26.0−29.7)
Overweight, BMI:24−27.9 63,232 40.0(37.9−42.1) 29,975 37.5(35.5−39.6) 33,257 42.9(40.4−45.4) 27,898 47.9(45.6−50.1) 35,334 31.4(28.9−34.0)
Obesity, BMI≥28 25,721 42.0(39.5−44.5) 11,343 41.0(38.4−43.7) 14,378 43.0(40.0−46.0) 12,172 48.1(45.2−50.9) 13,549 34.5(31.1−38.0)
p value for trend <0.001 <0.001 <0.001 <0.001 <0.001
Hypertension
Yes 71,642 39.3(37.4−41.3) 35,181 37.4(35.4−39.3) 36,461 41.7(39.6−43.8) 28,940 47.6(45.4−49.8) 42,702 31.9(29.6−34.2)
No 109,262 36.5(34.6−38.4) 49,226 32.1(30.5−33.7) 60,036 40.6(38.3−42.9) 44,798 43.4(41.1−45.7) 64,464 28.6(26.6−30.7)
p value for difference <0.001 <0.001 0.214 <0.001 <0.001
Awareness of maximum daily salt intake
Yes 9,335 71.8(69.0−74.7) 4,081 68.6(65.0−72.3) 5,254 74.4(71.3−77.6) 6,935 73.6(70.5−76.7) 2,400 28.7(26.7−30.8)
No 171,569 35.1(33.4−36.8) 80,326 31.8(30.2−33.4) 91,243 38.5(36.5−40.5) 66,803 41.6(39.6−43.5) 104,766 65.0(60.3−69.7)
p value for difference <0.001 <0.001 <0.001 <0.001 <0.001