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Table 2 Age-specific prevalence of cataract types in cross sections I and II.

From: Comparison of age-specific cataract prevalence in two population-based surveys 6 years apart

Cataract type

Age (years)

Cross-section I

Cross-section II

  

n

% (95% CL)*

n

% (95% CL)*

Cortical

50–54

473

4.4 (2.6–6.3)

338

7.4 (4.6–10.2)

 

55–59

522

9.2 (6.7–11.7)

542

9.0 (6.6–11.5)

 

60–64

615

16.4 (13.5–19.4)

556

16.7 (13.6–19.8)

 

65–69

653

26.2 (22.8–29.6)

581

23.6 (20.1–27.0)

 

70–74

516

31.2 (27.2–35.2)

514

35.4 (31.3–39.6)

 

75–79

366

40.2 (35.1–45.2)

332

39.8 (34.5–45.1)

 

80–84

194

58.8 (51.8–65.8)

163

42.9 (35.3–50.6)

 

85–89

74

52.7 (41.1–64.4)

73

54.8 (43.1–66.5)

 

90+

22

68.2 (47.0–89.3)

14

78.6 (54.0–103.2)

PSC

50–54

474

2.7 (1.3–4.2)

338

2.4 (0.7–4.0)

 

55–59

522

2.9 (1.4–4.3)

541

2.6 (1.3–3.9)

 

60–64

616

4.6 (2.9–6.2)

548

5.7 (3.7–7.6)

 

65–69

655

6.3 (4.4–8.1)

573

4.5 (2.8–6.3)

 

70–74

517

6.8 (4.6–8.9)

505

9.7 (7.1–12.3)

 

75–79

367

11.4 (8.2–14.7)

327

9.5 (6.3–12.7)

 

80–84

196

12.2 (7.6–16.9)

155

10.3 (5.5–15.2)

 

85–89

74

18.9 (9.8–28.1)

69

11.6 (3.9–19.4)

 

90+

23

21.7 (3.5–40.0)

11

0.0

Nuclear

50–54

323

1.6 (0.2–2.9)

331

0.9 (–0.2–1.9)

 

55–59

386

2.3 (0.8–3.8)

507

3.6 (1.9–5.2)

 

60–64

453

5.3 (3.2–7.4)

501

11.6 (8.8–14.4)

 

65–69

478

17.2 (13.8–20.1)

534

18.5 (15.2–21.9)

 

70–74

392

27.6 (23.1–32.0)

453

36.0 (31.6–40.4)

 

75–79

255

45.1 (39.0–51.3)

302

55.6 (50.0–61.3)

 

80–84

146

54.1 (45.9–62.3)

147

73.5 (66.3–80.7)

 

85–89

50

64.0 (50.2–77.8)

70

80.0 (70.4–89.6)

 

90+

18

72.2 (49.3–95.1)

15

73.3 (48.0–98.7)

  1. n = number of persons
  2. * 95% Confidence Limits