Table 1 Distribution of characteristics and dental health-related factors by age at baseline in the cohort identified from the Swedish Dental Health Register, 2009–2016.

From: Poor dental health and risk of pancreatic cancer: a nationwide registry-based cohort study in Sweden, 2009–2016

Characteristics

Age at baseline

>19 and <50 years

≥50 and <70 years

≥70 years

Total

Total (N, %)

3,277,247 (55.6)

1,832,912 (31.1)

779,282 (13.2)

5,889,441 (100)

Follow-up years (mean ± SD)

6.1 ± 2.1

7.1 ± 1.4

6.3 ± 2.1

6.4 ± 1.9

Age at baseline (mean ± SD)

33.0 ± 9.7

59.8 ± 5.6

78.3 ± 5.9

47.3 ± 18.9

Calendar year at baseline

  2009–2012

2,718,719 (83.0)

1,763,903 (96.2)

751,149 (96.4)

5,233,771 (88.9)

  2013–2016

558,528 (17.0)

69,009 (3.8)

28,133 (3.6)

655,670 (11.1)

Sex

  Male

1,622,126 (49.5)

904,510 (49.3)

343,479 (44.1)

2,870,115 (48.7)

  Female

1,655,121 (50.5)

928,402 (50.7)

435,803 (55.9)

3,019,326 (51.3)

Education level

  Low (≤9 years)

312,414 (9.5)

380,862 (20.8)

367,924 (47.2)

1,061,200 (18.0)

  Medium (>9 and <12 years)

1,820,628 (55.6)

797,146 (43.5)

266,766 (34.2)

2,884,540 (49.0)

  High (≥12 years)

1,119,148 (34.1)

554,112 (30.2)

138,763 (17.8)

1,812,023 (30.8)

  Unknown

25,057 (0.8)

100,792 (5.5)

5829 (0.7)

131,678 (2.2)

Family income

  Low

1,083,681 (33.1)

509,576 (27.8)

235,620 (30.2)

1,828,877 (31.1)

  Medium

1,029,300 (31.4)

614,210 (33.5)

297,145 (38.1)

1,940,655 (33.0)

  High

1,164,266 (35.5)

709,126 (38.7)

246,517 (31.6)

2,119,909 (36.0)

Smoking-related diseasesa

  No

3,261,572 (99.5)

1,798,045 (98.1)

744,499 (95.5)

5,804,116 (98.6)

  Yes

15,675 (0.5)

34,867 (1.9)

34,783 (4.5)

85,325 (1.4)

Alcohol-related disorders and diseasesb

  No

3,194,258 (97.5)

1,777,948 (97.0)

766,867 (98.4)

5,739,073 (97.4)

  Yes

82,989 (2.5)

54,964 (3.0)

12,415 (1.6)

150,368 (2.6)

Family history of pancreatic cancer

  No

3,249,705 (99.2)

1,816,066 (99.1)

713,723 (91.6)

5,779,494 (98.1)

  Yes

7537 (0.2)

12,542 (0.7)

3418 (0.4)

23,497 (0.4)

  Unknown

20,005 (0.6)

4304 (0.2)

62,141 (8.0)

86,450 (1.5)

Dental health statusc

  Healthy

1,729,541 (52.8)

791,990 (43.2)

352,698 (45.3)

2,874,229 (48.8)

  Caries

570,397 (17.4)

271,550 (14.8)

120,480 (15.5)

962,427 (16.3)

  Root canal infection

142,893 (4.4)

93,411 (5.1)

29,817 (3.8)

266,121 (4.5)

  Mild inflammation

627,207 (19.1)

340,882 (18.6)

133,740 (17.2)

1,101,829 (18.7)

  Periodontitis

207,209 (6.3)

335,079 (18.3)

142,547 (18.3)

684,835 (11.6)

Number of teeth

  Mean ± SD

29.0 ± 2.5

26.1 ± 4.6

20.8 ± 6.9

26.9 ± 5.0

  28+

2,274,139 (69.4)

796,321 (43.4)

99,208 (12.7)

3,169,668 (53.8)

  25–27

305,862 (9.3)

496,208 (27.1)

148,694 (19.1)

950,764 (16.1)

  21–24

70,767 (2.2)

230,119 (12.6)

177,188 (22.7)

478,074 (8.1)

  15–20

8343 (0.3)

95,266 (5.2)

153,240 (19.7)

256,849 (4.4)

  1–14

8120 (0.2)

55,622 (3.0)

123,120 (15.8)

186,862 (3.2)

  Unknown

610,016 (18.6)

159,376 (8.7)

77,832 (10.0)

847,224 (14.4)

  1. SD standard deviation.
  2. aSmoking-related diseases include chronic obstructive pulmonary disease and tobacco abuse (Supplementary Table 4).
  3. bAlcohol-related disorders and diseases include vitamin B deficiency with alcoholism, alcoholic psychosis, alcoholism, alcohol-induced pseudo-Cushing syndrome, alcoholic neuropathy, alcoholic cardiomyopathy, gastritis, nervous system injury/disease, myopathy, liver cirrhosis, fatty liver, unspecified liver injury, liver fibrosis/sclerosis/failure, or pancreatitis due to alcohol, alcoholic hepatitis, care of pregnant mother with alcohol abuse in which the foetus may be affected, toxic effect of ethanol, high blood levels of alcohol, and alcohol abuse (Supplementary Table 4).
  4. cThe healthy group includes individuals without caries, root canal infection, mild inflammation, mild to advanced periodontitis, or periimplantitis; mild inflammation includes gingivitis, pericoronitis, stomatitis, mucositis, and other unspecified inflammatory conditions; periodontitis includes mild and advanced periodontitis, and periimplantitis.