Table 1.
Characteristics of Inuit participants (30–69 years) with four Greenlandic grandparents. Values are arithmetic means with a 95% CI for the mean unless stated otherwise
| |
Men |
Women |
P-value* |
Total |
||||
|---|---|---|---|---|---|---|---|---|
| Characteristics | N | Mean (95% CI) | Total range | N | Mean (95% CI) | Total range | Mean (95% CI) | |
| Age (years) |
812 |
48.8 (48.1-49.5) |
30.0-69.9 |
1049 |
46.9 (46.4-47.5) |
30.0-69.9 |
<0.0001 |
47.8 (47.3-48.2) |
| Systolic blood pressure (mmHg) § |
795 |
133.5 (132.2-134.8) |
86.5-234.0 |
1025 |
124.3 (123.2-125.4) |
74.0-221.0 |
<0.0001 |
128.3 (127.4-129.1) |
| Diastolic systolic blood pressure (mmHg) § |
795 |
81.7 (80.8-82.5) |
43.5-140.0 |
1025 |
77.3 (76.6-78.0) |
41.5-121.0 |
<0.0001 |
79.2 (78.6-79.7) |
| Pulse pressure (mmHg) § |
795 |
50.6 (49.7-51.5) |
20.0-134.0 |
1025 |
45.8 (45.0-46.5) |
20.0-125.0 |
<0.0001 |
47.8 (47.2-48.4) |
| Hypertensiona, % |
796 |
41.7 |
|
1029 |
31.3 |
|
<0.0001 |
35.8 |
| Whole blood Mercury (μg/L) § |
805 |
20.5 (19.1-22.0) |
0.4-280.0 |
1040 |
14.7 (13.8-15.6) |
0.05-170.0 |
<0.0001 |
17.0 (16.2-17.8) |
| Quintiles of blood mercury (μg/L)§ |
|
|
|
|
|
|
b |
|
| Quintile 1 |
161 |
4.78 (4.37-5.23) |
0.4-8.7 |
209 |
3.33 (3.00-3.70) |
0.05-6.4 |
|
|
| Quintile 2 |
173 |
12.75 (12.38-13.13) |
8.8-17.0 |
213 |
9.20 (8.97-9.43) |
6.6-12.0 |
|
|
| Quintile 3 |
151 |
21.65 (21.21-22.11) |
17.3-26.1 |
204 |
15.81 (15.48-16.14) |
12.2-20.1 |
|
|
| Quintile 4 |
159 |
35.43 (34.46-36.44) |
27.0-49.0 |
206 |
26.54 (26.00-27.09) |
21.0-35.0 |
|
|
| Quintile 5 |
161 |
81.07 (76.31-86.13) |
50.0-280.0 |
208 |
54.63 (52.01-57.38) |
36.0-170.0 |
|
|
| Total n-3 fatty acids |
690 |
10.61 (10.27-10.94) |
1.16-22.39 |
917 |
10.5 (10.23-10.76) |
0.73-20.3 |
0.61 |
10.54 (10.34-10.75) |
| Total n-6 fatty acids |
690 |
19.23 (18.88-19.59) |
6.97-31.36 |
917 |
20.04 (19.74-20.33) |
8.79-32.53 |
0.0006 |
19.69 (19.46-19.92) |
| Ratio (n-3)/(n-6) § |
690 |
0.51 (0.49-0.53) |
0.07-2.11 |
917 |
0.49 (0.47-0.50) |
0.07-1.59 |
0.12 |
0.50 (0.48-0.51) |
| Blood selenium (μg/L)§ |
801 |
292.41 (278.38-307.16) |
77.0-5600.0 |
1037 |
279.60 (268.97-290.65) |
68.0-4600.0 |
0.16 |
285.11 (276.52-293.98) |
| Waist circumference (cm) § | 795 | 92.7 (91.8-93.5) | 64.0-160.0 | 1033 | 91.3 (90.5-92.2) | 62.5-137.8 | 0.04 | 91.9 (91.3-92.5) |
*Statistics: Comparison between men and women were performed using a t-test for continuous variables and Chi-square tests for categorical variables.
§ For non-normally distributed variables the geometric means are presented.
a Hypertension was defined as SBP ≥ 140 mmHg or DBP ≥ 90 mmHg or the use of anti-hypertensive drugs.
b Quintiles of whole blood mercury have been created separately for men and women. Therefore no comparisons have been made.