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Table 1 Demographic features of participants with and without primary headache

From: Association between DMFT and primary headaches: a study based on the Rafsanjan cohort study

Characteristics

All

(n = 8641)

EPH

(n = 2518)

NO EPH

(n = 6123)

P-value

CPH

(n = 642)

No CPH

(n = 7999)

P-value

Age—year

< 0.001

 

0.339

Mean ± SD

49.95 ± 9.50

48.86 ± 9.20

50.40 ± 9.59

 

50.29 ± 9.44

49.92 ± 9.51

 

Gender—no (%)

< 0.001

 

< 0.001

Male

3999 (46.28)

771 (30.62)

3228 (52.72)

 

173 (26.95)

3826 (47.83)

 

Female

4642 (53.72)

1747 (69.38)

2895 (47.28)

469 (73.05)

4173 (52.17)

Education—year

0.001

 

< 0.001

Mean ± SD

8.63 ± 5.03

8.30 ± 5.00

8.76 ± 5.03

 

7.38 ± 4.93

8.73 ± 5.02

 

BMI

0.044

 

< 0.001

Mean ± SD

27.85 ± 4.85

28.02 ± 4.79

27.79 ± 4.87

 

28.67 ± 4.93

27.79 ± 4.84

 

Wealth score index

0.002

 

< 0.001

Mean ± SD

0.03 ± 0.98

− 0.02 ± 1.01

0.06 ± 0.96

 

-0.12 ± 1.00

0.04 ± 0.97

 

Cigarette smoking—no (%)

< 0.001

 

< 0.001

No

6482 (75.13)

2042 (81.23)

4440 (72.62)

 

524 (82.13)

5958 (74.57)

 

Current

1396 (16.18)

297 (11.81)

1099 (17.98)

76 (11.91)

1320 (16.52)

Former

750 (9.40)

175 (6.96)

575 (8.69)

38 (5.96)

712 (8.91)

Opium consumption—no (%)

< 0.001

 

< 0.001

Yes

1954 (22.65)

415 (16.51)

1539 (25.18)

 

109 (17.08)

1845 (23.09)

 

No

6673 (77.35)

2099 (83.49)

4574 (74.82)

529 (82.92)

6144 (76.91)

 

Alcohol consumption—no (%)

< 0.001

 

0.017

Yes

857 (9.93)

186 (7.40)

671 (10.97)

 

46 (7.21)

811 (10.15)

 

No

7771 (90.07)

2328 (92.60)

5443 (89.03)

592 (92.79)

7179 (89.85)

 

Hypertension—no (%)

0.002

 

< 0.001

Yes

1946 (22.52)

622 (24.70)

1324 (21.62)

 

205 (31.93)

1741 (21.77)

 

No

6695 (77.48)

1896 (75.30)

4799 (78.38)

437 (68.07)

6258 (78.23)

Family history of headache—no (%)

< 0.001

 

< 0.001

Yes

2293 (26.54)

950 (37.73)

1343 (21.93)

 

272 (42.37)

2021 (25.27)

 

No

6348 (73.46)

1568 (62.27)

4780 (78.07)

370 (57.63)

5978 (74.73)

Diabetes mellitus—no (%)

  

0.011

  

0.125

Yes

1698 (19.65)

452 (17.95)

1246 (20.35)

 

141 (21.96)

1557 (19.46)

 

No

6943 (80.35)

2066 (82.05)

4877 (79.65)

 

501 (78.04)

6442 (80.54)

 

Teeth brushing—no (%)

  

< 0.001

  

0.958

Yes

6132 (70.96)

1873 (74.38)

4259 (69.56)

 

455 (70.87)

5677 (70.97)

 

No

2509 (29.04)

645 (25.62)

1864 (30.44)

 

187 (29.13)

2322 (29.03)

 

DMFT

0.06

 

0.06

Mean ± SD

21.31 ± 8.53

21.05 ± 8.36

21.42 ± 8.60

 

21.93 ± 8.64

21.26 ± 8.52

 

Decayed teeth

0.177

 

0.141

Mean ± SD

3.08 ± 3.64

2.99 ± 3.51

3.11 ± 3.70

 

2.89 ± 3.60

3.09 ± 3.56

 

Missing teeth

0.002

 

0.013

Mean ± SD

14.87 ± 11.00

14.28 ± 10.69

15.11 ± 11.12

 

15.90 ± 11.01

14.78 ± 11.00

 

Filled teeth

< 0.001

 

0.185

Mean ± SD

3.37 ± 4.65

3.77 ± 4.96

3.21 ± 4.51

 

3.14 ± 4.63

3.39 ± 4.66

 
  1. Abbreviations: Decayed, Missing, and Filled teeth (DMFT); Chronic primary headache (CPH); Episodic primary headache (EPH); Body mass index (BMI).