Relationship between weight-to-waist index and post-stroke depression

Table 1 Characteristics of the study population from National Health and Nutrition Examination Survey 2005-2018 before matching, n (%)

Characteristic	Overall (n = 33115)	Non-PSD (n = 32887)	PSD (n = 228)	P value
Age (years)	49.4 (17.7)	49.3 (17.7)	59.2 (12.7)	< 0.001
Sex				0.013
Female	16806 (51)	16670 (51)	136 (60)
Male	16309 (49)	16217 (49)	92 (40)
Race				0.006
Non-Hispanic White	14148 (43)	14035 (43)	113 (50)
Non-Hispanic Black	7071 (21)	7009 (21)	62 (27)
Mexican American	5214 (16)	5192 (16)	22 (9.6)
Other Hispanic	3165 (9.6)	3150 (9.6)	15 (6.6)
Other race	3517 (11)	3501 (11)	16 (7.0)
Poverty ratio				< 0.001
< 1.3	9334 (31)	9223 (31)	111 (53)
1.3-3.5	11557 (38)	11476 (38)	81 (39)
> 3.5	9481 (31)	9465 (31)	16 (7.7)
Education				< 0.001
Below high school	7977 (24)	7895 (24)	82 (36)
High school	7643 (23)	7579 (23)	64 (28)
Over high school	17471 (53)	17389 (53)	82 (36)
Marital status				< 0.001
Married/living with partner	19894 (60)	19791 (60)	103 (45)
Never married	5983 (18)	5949 (18)	34 (15)
Widowed/divorced/separated	7221 (22)	7131 (22)	90 (40)
Smoke				< 0.001
Former	8042 (24)	7978 (24)	64 (28)
Never	18189 (55)	18120 (55)	69 (30)
Now	6868 (21)	6773 (21)	95 (42)
Alcohol				< 0.001
Former	5190 (16)	5121 (16)	69 (33)
Heavy	6588 (21)	6551 (21)	37 (18)
Mild	10771 (34)	10717 (34)	54 (26)
Moderate	4994 (16)	4966 (16)	28 (13)
Never	4543 (14)	4521 (14)	22 (10)
BMI				< 0.001
Obese (30 or greater)	12614 (38)	12493 (38)	121 (53)
Overweight (25 to < 30)	11011 (33)	10952 (33)	59 (26)
Normal (18.5 to < 25)	8956 (27)	8912 (27)	44 (19)
Underweight (< 18.5)	502 (1.5)	498 (1.5)	4 (1.8)
DM				< 0.001
DM	6088 (19)	5993 (18.6)	95 (41.3)
Pre-diabetes	2721 (8.4)	2708 (8.4)	13 (5.7)
No	23693 (73)	23573 (73)	120 (53)
Hypertension				< 0.001
No	19132 (58)	19087 (58)	45 (20)
Yes	13980 (42)	13797 (42)	183 (80)
Hyperlipidemia				< 0.001
No	10067 (30)	10030 (30)	37 (16)
Yes	23047 (70)	22856 (70)	191 (84)
Heart failure	991 (3.0)	939 (2.9)	52 (23)	< 0.001
HEI 2015	50.77 (13.74)	50.79 (13.74)	46.74 (12.35)	< 0.001
MET	4402 (6469)	4409 (6476)	2848 (4289)	0.007
WWI	11.06 (0.85)	11.06 (0.85)	11.55 (0.75)	< 0.001

PSD: Post-stroke depression; BMI: Body mass index; DM: Diabetes mellitus; HEI 2015: Healthy Eating Index 2015; MET: Metabolic Equivalent of Task; WWI: Weight-to-waist index.