Skip to main content

Table 4 Comparison of oral health between the risk and control groups before and after propensity score matching in the elderly (age ≥ 65 years)

From: Oral health in adults with coronary artery disease and its risk factors: a comparative study using the Korea National Health and Nutrition Examination Survey data

Variables Unadjusted data Propensity-matched data
Control (n = 758), n (%) At risk (n = 1933), n (%) p Control (n = 715), n (%) At risk (n = 715), n (%) p
Chewing problem
 No 486 (64.5) 1125 (60.0) .061 461 (65.2) 423 (59.4) .039
 Yes 272 (35.5) 808 (40.0)   254 (34.8) 292 (40.6)  
Speaking problem
 No 654 (87.1) 1580 (82.5) .014 615 (86.8) 583 (81.3) .013
 Yes 104 (12.9) 353 (17.5)   100 (13.2) 132 (18.7)  
Use of oral hygiene supplies
 No 461 (60.8) 1259 (64.9) .071 435 (61.1) 442 (60.5) .840
 Yes 297 (39.2) 674 (35.1)   280 (38.9) 273 (39.5)  
Oral examination in the last 1 year
 No 543 (69.5) 1418 (73.2) .115 509 (69.4) 519 (73.3) .174
 Yes 215 (30.5) 515 (26.8)   206 (30.6) 196 (26.7)  
Tooth brushing per day
 < 3 times 447 (56.9) 1228 (62.7) .014 418 (56.3) 439 (60.6) .150
 ≥ 3 times 311 (43.1) 705 (37.3)   297 (43.7) 276 (39.4)  
Preventive dental treatmenta
 No 525 (67.0) 1389 (71.1) .066 493 (66.9) 502 (70.3) .222
 Yes 233 (33.0) 544 (28.9)   222 (33.1) 213 (29.7)  
Dental hospital use
 No 305 (38.8) 731 (39.0) .925 286 (38.8) 272 (39.2) .901
 Yes 453 (61.2) 1202 (61.0)   429 (61.2) 443 (60.8)  
Simple dental treatmenta
 No 664 (86.3) 1726 (89.8) .038 631 (87.1) 634 (89.6) .211
 Yes 94 (13.7) 207 (10.2)   84 (12.9) 81 (10.4)  
Dental nerve treatmenta
 No 623 (81.4) 1622 (83.7) .218 590 (82.1) 602 (84.0) .366
 Yes 135 (18.6) 311 (16.3)   125 (17.9) 113 (16.0)  
Gingival disease treatmenta
 No 625 (81.3) 1572 (81.7) .855 590 (81.5) 570 (79.3) .346
 Yes 133 (18.7) 361 (18.3)   125 (18.5) 145 (20.7)  
Tooth extraction or oral surgerya
 No 653 (85.0) 1631 (84.6) .793 620 (85.9) 589 (82.3) .099
 Yes 105 (15.0) 302 (15.4)   95 (14.1) 126 (17.7)  
Number of remaining teeth
 < 20 345 (43.7) 958 (50.1) .012 331 (44.3) 342 (49.2) .097
 ≥ 20 413 (56.3) 975 (49.9)   384 (55.7) 373 (50.8)  
Permanent dental caries patients
 No 556 (73.8) 1435 (75.4) .439 524 (73.8) 534 (75.7) .456
 Yes 202 (26.2) 498 (24.6)   191 (26.2) 181 (24.3)  
Prevalence of periodontal disease
 No 417 (54.9) 992 (51.8) .239 392 (54.7) 359 (51.2) .251
 Yes 341 (45.1) 941 (48.2)   323 (45.3) 356 (48.8)  
  1. aResponses were based on experience within the previous year