Table 1 Baseline characteristics of the participants by anthropometric groups.

From: Central obesity and its association with retinal age gap: insights from the UK Biobank study

Baseline Characteristics

Total

Anthropometric Groups

P value

Normal-weight/Normal WC

Overweight/Normal WC

Mild obesity/Normal WC

Normal-weight/High WC

Overweight/High WC

Mild obesity/High WC

Severe obesity/High WC

 

N

35,550

11,043

11,410

1262

221

3747

5249

2618

 

Age, mean (SD), yrs

56.8 (8.04)

56.0 (8.20)

56.8 (8.11)

55.9 (8.18)

58.7 (7.23)

58.8 (7.39)

57.4 (7.75)

56.1 (7.86)

<0.001

Gender, No. (%)

 Female

19,759 (55.6)

7305 (66.2)

4769 (41.8)

495 (39.2)

217 (98.2)

2516 (67.1)

2789 (53.1)

1668 (63.7)

<0.001

 Male

15,791 (44.4)

3738 (33.9)

6641 (58.2)

767 (60.8)

4 (1.81)

1231 (32.9)

2460 (46.9)

950 (36.3)

 

Ethnicity, NO. (%)

 White

33,154 (93.3)

10,340 (93.6)

10,654 (93.4)

1142 (90.5)

213 (96.4)

3507 (93.6)

4887 (93.1)

2411 (92.1)

<0.001

 Others

2396 (6.74)

703 (6.37)

756 (6.63)

120 (9.51)

8 (3.62)

240 (6.41)

362 (6.90)

207 (7.91)

 

Deprivation index, mean (SD)

−1.09 (2.95)

−1.22 (2.89)

−1.24 (2.88)

−1.06 (3.04)

−1.16 (2.71)

−1.11 (2.95)

−0.82 (3.09)

−0.45 (3.16)

<0.001

SBP, mean (SD), mmHg

137.7 (18.5)

132.7 (19.0)

138.9 (18.0)

140.4 (17.5)

135.9 (19.7)

140.0 (18.1)

141.3 (17.1)

141.6 (17.3)

<0.001

Education level, No. (%)

 College/university

12,336 (34.7)

4690 (42.5)

3996 (35.0)

376 (29.8)

74 (33.5)

1080 (28.8)

1460 (27.8)

660 (25.2)

<0.001

 Others

23,214 (65.3)

6353 (57.5)

7414 (65.0)

886 (70.2)

147 (66.5)

2667 (71.2)

3789 (72.2)

1958 (74.8)

 

Smoking status, No. (%)

 Never

19,606 (55.4)

6515 (59.2)

6287 (55.4)

668 (53.1)

123 (55.7)

1933 (51.8)

2660 (51.1)

1420 (54.7)

<0.001

 Former/current

15,767 (44.6)

4499 (40.8)

5059 (44.6)

590 (46.9)

98 (44.3)

1796 (48.2)

2551 (48.9)

1174 (45.3)

 

Alcohol drinking status, No. (%)

 Never

1561 (4.40)

434 (3.94)

426 (3.75)

52 (4.13)

15 (6.79)

195 (5.22)

256 (4.90)

183 (7.02)

<0.001

 Former/current

33,884 (95.6)

10,587 (96.1)

10,949 (96.2)

1207 (95.9)

206 (93.2)

3543 (94.8)

4970 (95.1)

2422 (93.0)

 

Meeting moderate/vigorous recommendation, No. (%)

 Yes

13,191 (45.3)

3751 (40.8)

3994 (41.8)

434 (42.3)

85 (49.4)

1548 (51.4)

2155 (51.9)

1224 (60.9)

<0.001

 No

15,925 (54.7)

5433 (59.2)

5568 (58.2)

592 (57.7)

87 (50.6)

1465 (48.6)

1995 (48.1)

785 (39.1)

 

History of diabetes, No. (%)

 No

33,224 (93.5)

10,779 (97.6)

10,874 (95.3)

1172 (92.9)

215 (97.3)

3451 (92.1)

4643 (88.5)

2090 (79.8)

<0.001

 Yes

2326 (6.54)

264 (2.39)

536 (4.70)

90 (7.13)

6 (2.71)

296 (7.90)

606 (11.5)

528 (20.2)

 

History of cardiovascular diseases, No. (%)

 No

33,473 (96.0)

10,627 (97.4)

10,753 (96.1)

1173 (94.9)

213 (99.1)

3515 (95.8)

4799 (93.9)

2393 (93.9)

<0.001

 Yes

1407 (4.03)

286 (2.62)

436 (3.90)

63 (5.10)

2 (0.93)

153 (4.17)

313 (6.12)

154 (6.05)

 

History of hyperlipidemia, No. (%)

 No

18,385 (51.7)

6650 (60.2)

5895 (51.7)

615 (48.7)

104 (47.1)

1608 (42.9)

2259 (43.0)

1254 (47.9)

<0.001

 Yes

17,165 (48.3)

4393 (39.8)

5515 (48.3)

647 (51.3)

117 (52.9)

2139 (57.1)

2990 (57.0)

1364 (52.1)

 
  1. SD standard deviation, SBP systolic blood pressure.
  2. Bold values indicates statistical significant P values (P < 0.05).