Table 2 Adjusted-prevalence of myopia and other refractive errors among adults aged 40–80 in Gansu, China, 2016.

From: Prevalence and risk factors of myopia in Han and Yugur older adults in Gansu, China: a cross-sectional study

 

N

Prevalence

Crude

P (95% CI)

Adjusted

P (95% CI)

Age group

40–49

50–59

60–69

70–80

Myopia

   Overall

1080

28.1%

(26.7–29.5)

28.8%

(27.4–30.3)

35.6%

26.3%

18.3%

25.8%

   Han ethnicity

916

32.9%

(31.1–34.6)

34.3%

(32.5–36.1)

44.3%

30.8%

19.8%

25.8%

   Yugur ethnicity

164

15.5%

(13.3–17.7)

16.4%

(14.2–18.7)

17.4%

13.3%

13.3%

25.8%

   Men

464

27.3%

(25.2–29.5)

28.3%

(26.2–30.4)

33.8%

26.4%

18.5%

27.1%

   Women

616

28.7%

(26.8–30.6)

29.4%

(27.4–31.3)

37.0%

26.3%

18.1%

24.3%

Low myopia

    Overall

757

19.7%

(18.4–20.9)

20.1%

(18.8–21.4)

23.0%

19.3%

14.6%

19.4%

   Han ethnicity

619

22.2%

(20.7–23.7)

22.9%

(21.3–24.4)

27.4%

21.8%

15.4%

19.4%

   Yugur ethnicity

138

13.1%

(11.0–15.1)

13.6%

(11.5–15.7)

13.8%

11.9%

12.3%

19.4%

   Men

372

21.9%

(20.0–23.9)

20.4%

(18.5–22.4)

22.5%

20.6%

15.6%

20.0%

   Women

415

19.3%

(17.7–21.0)

19.7%

(18.1–21.4)

23.3%

18.4%

13.7%

18.6%

Moderate myopia

   Overall

182

4.7%

(4.1–5.4)

5.1%

(4.4–5.8)

7.2%

3.8%

2.0%

5.2%

   Han ethnicity

163

5.8%

(5.0–6.7)

6.4%

(5.5–7.3)

9.5%

4.7%

2.2%

4.8%

   Yugur ethnicity

19

1.8%

(1.0–2.6)

2.2%

(1.3–3.1)

2.3%

1.1%

1.0%

6.5%

   Men

77

4.5%

(3.5–5.5)

5.0%

(3.9–6.0)

7.1%

3.5%

1.5%

5.9%

   Women

105

4.9%

(4.0–5.8)

5.2%

(4.2–6.1)

7.2%

4.0%

2.3%

4.3%

High myopia

   Overall

141

3.7%

(3.1–4.3)

3.6%

(3.0–4.2)

5.4%

3.2%

1.7%

1.3%

   Han ethnicity

134

4.8%

(4.0–5.6)

5.0%

(4.2–5.9)

7.5%

4.2%

2.2%

1.6%

   Yugur ethnicity

7

0.7%

(0.2–1.2)

0.7%

(0.2–1.2)

1.3%

0.3%

0.0%

0.0%

   Men

45

2.7%

(1.9–3.4)

2.8%

(2.0–3.6)

4.1%

2.2%

1.3%

1.2%

   Women

96

4.5%

(3.6–5.3)

4.5%

(3.6–5.4)

6.5%

4.0%

2.1%

1.4%

Emmetropia

   Overall

1953

50.8%

(49.2–52.4)

49.9%

(48.4–51.5)

56.2%

53.5%

40.5%

30.3%

   Han ethnicity

1323

47.5%

(45.6–49.3)

46.5%

(44.7–48.4)

50.3%

51.3%

39.8%

30.6%

   Yugur ethnicity

630

59.6%

(56.6–62.6)

57.3%

(54.3–60.3)

68.6%

59.7%

42.6%

29.0%

   Men

846

49.9%

(47.5–52.2)

49.4%

(47.0–51.7)

57.5%

53.2%

37.9%

24.7%

   Women

1107

51.5%

(49.4–53.7)

50.5%

(48.4–52.6)

55.2%

53.6%

42.8%

37.1%

Hyperopia

   Overall

812

21.1%

(19.8–22.4)

21.2%

(19.9–22.5)

8.2%

20.2%

41.2%

43.9%

   Han ethnicity

549

19.7%

(18.2–21.2)

19.2%

(17.7–20.6)

5.4%

17.9%

40.3%

43.5%

   Yugur ethnicity

263

24.9%

(22.3–27.5)

26.2%

(23.6–28.9)

14.0%

26.9%

44.1%

45.2%

   Men

387

22.8%

(20.8–24.8)

22.3%

(20.3–24.3)

8.7%

20.4%

43.6%

48.2%

   Women

425

19.8%

(18.1–21.5)

20.1%

(18.4–21.8)

7.8%

20.0%

39.1%

38.6%

  1. Note: CI, confidence interval. Prevalence of All subjects were adjusted by age and sex. Prevalence of the Han ethnicity, Yugur ethnicity, Men and Women were adjusted by age.