Table 1

Baseline characteristics of the Korean elderly according to alcohol intake status

Total
(N=6163)
Non-drinker
(N=4082)
Drinker
(N=2081)
p Value*
VariableClassificationn (%)n (%)n (%)
Age at enrolmentMean (SD), years66.6 (7.9)67.1 (8.3)65.8 (7.0)<0.001†
GenderWomen3528 (57.2)3165 (77.5)363 (17.4)<0.001
Men2635 (42.8)917 (22.5)1718 (82.6)
SmokingCurrent smoker2748 (44.6)1182 (29.0)1566 (75.3)<0.001
Past smoker267 (4.3)144 (3.5)123 (5.9)
Never smoker3148 (51.1)2756 (67.5)392 (18.8)
Body mass index, kg/m2<18.5556 (9.0)377 (9.2)179 (8.6)<0.001
18.5–24.94563 (74.0)2908 (71.2)1655 (79.5)
≥25.01044 (16.9)797 (19.5)247 (11.9)
Hypertension‡No2505 (40.6)1708 (41.8)797 (38.3)0.007
Yes3658 (59.4)2374 (58.2)1284 (61.7)
Self-rated healthGood or fair4692 (76.1)3039 (74.4)1653 (79.4)<0.001
Poor1471 (23.9)1043 (25.6)428 (20.6)
Marital statusLiving with a spouse4043 (65.6)2357 (57.7)1686 (81.0)<0.001
Not living with a spouse2120 (34.4)1725 (42.3)395 (19.0)
EducationEver2255 (36.6)1167 (28.6)1088 (52.3)<0.001
Never§3908 (63.4)2915 (71.4)993 (47.7)
OccupationNon-agriculture1079 (17.5)737 (18.1)342 (16.4)0.113
Agriculture5084 (82.5)3345 (81.9)1739 (83.6)
Alcohol intake statusNon-drinker4082 (66.2)4082 (100.0)0 (0.0)<0.001
Drinker2081 (33.8)0 (0.0)2081 (100.0)
Alcohol intake frequencyNon-drinker4082 (66.2)4082 (100.0)0 (0.0)<0.001
4 or fewer days a month607 (9.8)0 (0.0)607 (29.2)
2–6 days a week1009 (16.4)0 (0.0)1009 (48.5)
Daily465 (7.5)0 (0.0)465 (22.3)
Alcohol intake amount, g alcohol/drinking day (drink/drinking day)¶Non-drinker4082 (66.2)4082 (100.0)0 (0.0)<0.001
Below 70 g (5 drinks)1037 (16.8)0 (0.0)1037 (49.8)
70–139 g (5–9 drinks)732 (11.9)0 (0.0)732 (35.2)
140 g or over (≥10 drinks)312 (5.1)0 (0.0)312 (15.0)
Alcohol intake amount, g alcohol/week (drink/week)¶Non-drinker4082 (66.2)4082 (100.0)0 (0.0)<0.001
Below 70 g (5 drinks)729 (11.8)0 (0.0)729 (35.0)
70–209 g (5–14 drinks)449 (7.3)0 (0.0)449 (21.6)
210–419 g (15–29 drinks)328 (5.3)0 (0.0)328 (15.8)
420 g or over (≥30 drinks)575 (9.3)0 (0.0)575 (27.6)
  • 2 analysis.

  • †One-way analysis of variance.

  • ‡Measured blood pressure ≥140/90 mm Hg or on regular medication.

  • §No formal education, not even elementary school.

  • ¶1 standard drink considered to be approximately 14 g according to the National Institute on Alcohol Abuse and Alcoholism of the USA.

  • BMI, body mass index.