Table 1.

Basic characteristics of participants by WWI.

Characteristics	Overall	WWI
		Q1 (<7.31)	Q2 (7.31–7.99)	Q3 (7.99–8.72)	Q4 (>8.72)
Count	155,683	38,934	38,910	38,918	38,921
Age at base (mean (SD))	63.23 (2.36)	63.30 (2.38)	63.28 (2.37)	63.27 (2.36)	63.07 (2.32)
Sex = 1 (%)	74,369 (47.8)	6275 (16.1)	15,436 (39.7)	23,609 (60.7)	29,049 (74.6)
BMI (mean (SD))	27.57 (4.46)	23.77 (2.64)	26.33 (2.74)	28.22 (3.05)	31.97 (4.48)
WWI_quantile (%)
Q1	38,934 (25.0)	38,934 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)
Q2	38,910 (25.0)	0 (0.0)	38,910 (100.0)	0 (0.0)	0 (0.0)
Q3	38,918 (25.0)	0 (0.0)	0 (0.0)	38,918 (100.0)	0 (0.0)
Q4	38,921 (25.0)	0 (0.0)	0 (0.0)	0 (0.0)	38,921 (100.0)
Ethnicity (%)
White	145,821 (93.7)	35,847 (92.1)	36,431 (93.6)	36,658 (94.2)	36,885 (94.8)
Asian	3927 (2.5)	1212 (3.1)	974 (2.5)	915 (2.4)	826 (2.1)
Black	473 (0.3)	208 (0.5)	131 (0.3)	77 (0.2)	57 (0.1)
Mixed	4603 (3.0)	1257 (3.2)	1184 (3.0)	1118 (2.9)	1044 (2.7)
Other	859 (0.6)	410 (1.1)	190 (0.5)	150 (0.4)	109 (0.3)
Chronic condition (%)
Heart attack	6308 (4.1)	839 (2.2)	1272 (3.3)	1723 (4.4)	2474 (6.4)
Angina	6628 (4.3)	1136 (2.9)	1464 (3.8)	1829 (4.7)	2199 (5.6)
Stroke	3085 (2.0)	627 (1.6)	711 (1.8)	817 (2.1)	930 (2.4)
High blood pressure	50,143 (32.2)	10,093 (25.9)	11,330 (29.1)	12,996 (33.4)	15,724 (40.4)
Other	89,519 (57.5)	26,239 (67.4)	24,133 (62.0)	21,553 (55.4)	17,594 (45.2)
College = 1 (%)	38,144 (24.5)	9222 (23.7)	9577 (24.6)	9910 (25.5)	9435 (24.2)
Ever drinker = 1 (%)	147,845 (95.0)	36,317 (93.3)	36,837 (94.7)	37,294 (95.8)	37,397 (96.1)
Current smoker = 1 (%)	12,402 (8.0)	3751 (9.6)	2936 (7.5)	2853 (7.3)	2862 (7.4)
Outcome = 1 (%)	3211 (2.1)	894 (2.3)	819 (2.1)	750 (1.9)	748 (1.9)