Table 1. Participants’ characteristics based on the index examination of National Health Insurance Service National Health Screening

Prehypertension group Prediabetes group
All Men Women All Men Women
Participants (%) 95,152 60,084 (63.15) 35,068 (36.85) 57,865 37,836 (65.39) 20,029 (34.61)
Age (SD) 49.71 (8.08) 49.04 (7.85) 50.85 (8.34) 51.69 (8.90) 50.77 (8.57) 53.42 (9.25)
Income (%) Quintile 1 13,925 (14.63) 6,069 (10.1) 7,856 (22.4) 8,907 (15.39) 4,382 (11.58) 4,525 (22.59)
Quintile 2 11,874 (12.48) 5,966 (9.93) 5,908 (16.85) 7,975 (13.78) 4,426 (11.7) 3,549 (17.72)
Quintile 3 14,207 (14.93) 9,117 (15.17) 5,090 (14.51) 9,080 (15.69) 5,959 (15.75) 3,121 (15.58)
Quintile 4 19,537 (20.53) 13,603 (22.64) 5,934 (16.92) 11,881 (20.53) 8,271 (21.86) 3,610 (18.02)
Quintile 5 35,609 (37.42) 25,329 (42.16) 10,280 (29.31) 20,022 (34.6) 14,798 (39.11) 5,224 (26.08)
SBP, mmHg (SD) 123.69 (7.02) 123.78 (7.00) 123.54 (7.07) 128.60 (17.56) 129.80 (16.95) 126.35 (18.45)
DBP, mmHg (SD) 78.06 (5.39) 78.46 (5.14) 77.38 (5.73) 80.86 (11.50) 82.19 (11.25) 78.34 (11.55)
FBS, mg/dL (SD) 95.26 (28.80) 96.56 (30.14) 93.04 (26.20) 107.87 (6.48) 108.11 (6.54) 107.40 (6.34)
Currently smoking (%) 25,778 (28.33) 25,201 (44.05) 577 (1.71) 15,576 (28.07) 15,144 (41.79) 432 (2.24)
Drinking (%) Never 49,153 (53.27) 26,985 (46.39) 22,168 (65.01) 26,936 (47.36) 11,135 (29.82) 15,801 (80.92)
2–3 times per month 25,803 (27.96) 19,491 (33.5) 6,312 (18.51) 9,670 (17.00) 7,485 (20.04) 2,185 (11.19)
1–2 times per week 9,532 (10.33) 6,835 (11.75) 2,697 (7.91) 12,024 (21.14) 10,899 (29.19) 1,125 (5.76)
3–4 times per week 2,550 (2.76) 1,661 (2.86) 889 (2.61) 5,313 (9.34) 5,076 (13.59) 237 (1.21)
Everyday 5,235 (5.67) 3,203 (5.51) 2,032 (5.96) 2,927 (5.15) 2,748 (7.36) 179 (0.92)
Exercise (%) Never 49,153 (53.27) 26,985 (46.39) 22,168 (65.01) 30,678 (54.28) 17,469 (47.2) 13,209 (67.7)
1–2 times per week 25,803 (27.96) 19,491 (33.50) 6,312 (18.51) 15,407 (27.26) 12,106 (32.71) 3,301 (16.92)
3–4 times per week 9,532 (10.33) 6,835 (11.75) 2,697 (7.91) 5,405 (9.56) 4,098 (11.07) 1,307 (6.7)
5–6 times per week 2,550 (2.76) 1,661 (2.86) 889 (2.61) 1,517 (2.68) 1,064 (2.88) 453 (2.32)
Everyday 5,235 (5.67) 3,203 (5.51) 2,032 (5.96) 3,512 (6.21) 2,271 (6.14) 1,241 (6.36)
BMI, kg/m2 (%) <23 38,116 (40.08) 22,739 (37.87) 15,377 (43.88) 19,699 (34.06) 12,372 (32.72) 7,327 (36.61)
23–24.9 27,574 (29.00) 17,901 (29.81) 9,673 (27.60) 16,379 (28.32) 11,041 (29.20) 5,338 (26.67)
Over 25 29,409 (30.92) 19,412 (32.33) 9,997 (28.52) 21,754 (37.62) 14,403 (38.09) 7,351 (36.73)
CCI score (SD) 0.31 (0.64) 0.27 (0.61) 0.37 (0.68) 0.32 (0.63) 0.57 (0.59) 0.41 (0.70)
Total cholesterol (SD) 199.18 (36.91) 198.46 (36.46) 200.41 (37.65) 203.92 (38.00) 202.14 (37.41) 207.30 (38.87)
Statin (%) 855 (0.9) 410 (0.68) 445 (1.71) 1,026 (1.77) 520 (1.37) 506 (2.53)
HTN (%) 11,577 (20.01) 6,715 (17.75) 4,862 (24.27)
Antihypertensive drug (%) 8,962 (15.49) 5,416 (14.31) 3,546 (17.7)
DM (%) 7,376 (7.75) 4,496 (7.48) 2,880 (8.21)
Antihyperglycemic drug (%) 2,601 (2.73) 1,708 (2.84) 893 (2.55)
Aspirin 665 (0.7) 418 (0.7) 247 (0.7) 2,506 (4.33) 1,572 (4.15) 934 (4.66)
SBP, systolic blood pressure; DBP, diastolic blood pressure; FBS, fasting blood sugar; BMI, body mass index; CCI, Charlson comorbidity index; HTN, hypertension; DM, diabetes mellitus.