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Table 2 Nested cohort by salt excretion levels, low, medium and high salt groups, WHO – SAGE Ghana Wave 3 (2019)

From: Salt and potassium intake among adult Ghanaians: WHO-SAGE Ghana Wave 3

Characteristics

Low salt

< 5 g/d

(n = 186)

Medium salt

5-9 g/d

(n = 269)

High salt

> 9 g/d

(n = 378)

p value

Age yrs

64 (20)

60 (17)

58 (18)

<  0.01

Sex male, n (%)

n = 185

73 (39.5)

n = 269

90 (33.5)

n = 378

105 (27.8)

0.02

Ethnicity n (%)

n = 184

n = 268

n = 376

0.03

 Akan

122 (66.3)

168 (62.7)

203 (54.0)

 

 Ga

7 (3.8)

11 (4.1)

27 (7.2)

 

 Ewe

14 (7.6)

18 (6.7)

24 (6.4)

 

 Mole-dagbon

5 (2.7)

6 (2.2)

13 (3.5)

 

 Mole-busanga

1 (0.5)

0 (0.0)

2 (0.5)

 

 Grusi

3 (1.6)

3 (1.1)

6 (1.6)

 

 Guan

0 (0.0%)

11 (4.1%)

5 (1.3)

 

 Gruma

1 (0.5)

3 (1.1)

2 (0.5)

 

 Other

31 (16.8)

48 (17.9)

94 (25.0)

 

Urban n (%)

n = 185

102 (55.1)

n = 269

149 (55.4)

n = 378

200 (52.9)

0.79

Education (years)

n = 118

10 (5)

n = 179

10 (3)

n = 250

10 (5)

0.07

BMI, kg/m2

n = 179

23.8 (6.5)a

n = 258

25.5 (7.8)

n = 356

26.2 (7.5)a

< 0.01

Salt intake g/d

n = 186

3.6 (1.5)ab

n = 269

6.7 (2.0)ac

n = 371

13.4 (8.9)bc

<  0.01

K intake, mmol/d

n = 186

32.0 (25.8)ab

n = 269

54.9 (43.8)ac

n = 378

112.3 (115.8)bc

<  0.01

Na: K

n = 186

1.7 (1.2)ab

n = 269

2.0 (1.4)ac

n = 378

2.3 (1.9)bc

<  0.01

Urinary iodine excretion, mmol/day

n = 150

166.2 (168.5)b

n = 211

148.2 (131.4)a

n = 292

117.6 (132.8)ab

<  0.01

Systolic BP, mmHg

n = 186

129 (31.0)

n = 266

126 (31.0)

n = 375

126.5 (29.0)

0.73

Diastolic BP, mmHg

n = 188

76 (18.0)

n = 270

75.5 (17)

n = 379

77.5 (117.0)

0.68

Pulse pressure, mmHg

n = 186

50.5 (16.7)

n = 266

49.5 (17.6)

n = 375

49.5 (16)

0.20

Mean Arterial Pressure (MAP), mmHg

n = 185

94.2 (21.3)

n = 266

110 (41.0)

n = 376

93.5 (19.4)

0.85

Hypertension Prevalence, n (%)

n = 186

94 (50.5)

n = 268

110 (41.0)

n = 378

166 (44.3)

0.13

Hypertension awareness, n (% of hypertension prevalence)

n = 94

51 (54.8)

n = 110

62 (55.4)

n = 166

108 (65.1)

0.16

Hypertension medication, current use n (% of hypertension awareness)

n = 51

31 (60.8)

n = 62

47 (75.8)

n = 108

74 (68.5)

0.23

Hypertension control, n (% of Hypertension medication)

n = 31

16 (51.6)

n = 47

22 (46.8)

n = 74

39 (52.7)

0.82

Stroke, n (%)

n = 185

6 (3.2)

n = 269

6 (2.2)

n = 378

6 (1.6)

0.44

Diabetes, n (%)

n = 185

10 (5.4)

n = 269

24 (8.9)

n = 378

32 (8.5)

0.37

Tobacco use, n (%)

n = 182

25 (13.7)

n = 269

25 (9.3)

n = 378

29 (7.7)

0.72

Alcohol use, n (%)

n = 182

80 (44.0)

n = 269

115 (42.8)

n = 378

156 (41.3)

0.82

Fruits and Veg., met recommendation n (%)

n = 186

97 (52.2)

n = 269

152 (56.5)

n = 378

193 (51.1)

0.38

Frequently adds salt to food at the table, n (%)

n = 158

24 (13)

n = 269

35 (13)

n = 279

(12.4)

0.65

Frequently adds salt to cooking at home, n (%)

n = 185

149 (80.5)

n = 296

225 (83.6)

n = 378

291 (77)

0.05

Believe that they are eating just the right amount of salt n (%)

n = 185

105 (56.8)

n = 267

169 (63.3)

n = 376

228 (60.6)

0.18

Believe a high salt diet can cause a serious health problem, n (%)

n = 180

144 (80.0)

n = 259

207 (79.9)

n = 368

296 (80.4)

0.99

Does something to control salt consumption, n (%)

n = 183

82 (44.8)

n = 260

126 (48.5)

n = 363

182 (50.1)

0.50

  1. Data are presented as median (IQR, interquartile range) unless otherwise stated. BMI, body; hypertension prevalence, BP ≥ 140/90 or previous diagnosis; Current use of hypertension medication represents current use in the last 2 weeks; BMI, body mass index; tobacco use by self-report; alcohol use by self-report; met fruits and vegetable recommendation indicates consumed five or more servings of fruits and vegetables a day; salt behaviour responses, frequently indicates ‘always’ and ‘often’; continuous variables compared using Independent Kruskal-Wallis Test and categorical variables compared using Pearson Chi-Square Test and Fisher’s Exact Test. a, b, c; sig at p < 0.05