Table 1 Baseline demographic factors of study population.

From: Predictors of narrow angle detection rate—a longitudinal study of Massachusetts residents over 1.7 million person years

 

Initially seen by optometrist

Initially seen by ophthalmologist

Total

n

706,581

375,563

1,082,144

Age decade (n, %)a

 <10

29,062 (4.1)

28,744 (7.7)

57,806 (5.3)

 10–19

79,964 (11.3)

25,293 (6.7)

105,257 (9.7)

 20–29

88,591 (12.5)

20,224 (5.4)

108,815 (10.1)

 30–39

86,626 (12.3)

24,126 (6.4)

110,752 (10.2)

 40–49

128,102 (18.1)

47,038 (12.5)

175,140 (16.2)

 50–59

141,941 (20.1)

72,090 (19.2)

214,031 (19.8)

 60–69

117,669 (16.7)

106,585 (28.4)

224,254 (20.7)

 70+

34,540 (4.9)

51,420 (13.7)

85,960 (7.9)

Sex (n, %)

 Male

294,674 (41.7)

162,286 (43.2)

456,960 (42.2)

 Female

409,133 (57.9)

212,866 (56.7)

621,999 (57.5)

 Other/unknown

2774 (0.4)

411 (0.1)

3185 (0.3)

  1. aSome cases (<0.1%) were missing age.