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Table 2 Participant characteristics by presentation of diabetic retinopathy and gender

From: Prevalence of diabetic retinopathy in Tehran province: a population-based study

Characteristic

Total

(N = 634)

No DR

(n = 394)

Any DR

(n = 240)

P*

Men with DR

(n = 116)

Women with DR

(n = 124)

P¶

Age (years)

59.29 (11.98)

60.15 (12.50)

55.89 (10.96)

0.017

57.73 (10.56)

58.06 (11.42)

0.814

Sex (%)

       

Male

287 (45.3)

163 (56.8)

124 (43.2)

0.012

-

-

-

Female

347 (54.7)

231 (66.6)

116 (33.4)

    

Diabetes type

       

I

16 (2.5)

7 (43.8)

9 (56.3)

0.12

3 (42.9)§

6 (66.7)§

0.321

II

618 (97.5)

387 (62.6)

231 (37.4)

 

121 (43.2)

110 (32.5)

 

Duration (year)

       

<5

215 (33.9)

167 (77.7)

48 (22.3)

<0.001

27 (29.7)

21 (16.9)

0.981

5-10

214 (33.8)

141 (65.9)

73 (34.1)

 

32 (34.0)

41 (34.2)

 

11-15

100 (15.8)

54 (0.54)

46 (0.46)

 

28 (59.6)

18 (34.0)

 

15-20

47 (7.4)

12 (25.5)

35 (74.5)

 

19 (86.4)

16 (64.0)

 

>20

58 (9.1)

20 (34.5)

38 (65.5)

 

18 (54.5)

20 (80.0)

 

Hypertension

       

Absent

383 (60.4)

250 (65.3)

133(34.7)

0.045

86 (42.6)

47 (26.0)

<0.001

Present

251 (39.6)

144(57.4)

107 (42.6)

 

38 (44.7)

69 (41.6)

 

Nephropathy

       

Absent

599 (94.5)

380 (63.4)

219 (36.6)

0.005

112 (42.1)

107 (32.1)

0.599

Present

35 (5.5)

14 (40.0)

21 (60.0)

 

12 (57.1)

9 (64.3)

 

Hyperlipidemia

       

Absent

360 (56.8)

232 (64.4)

128(35.6)

0.17

73 (39.9)

55 (31.1)

0.075

Present

278 (43.2)

162(59.1)

112 (40.9)

 

51 (49.0)

61 (35.9)

 

HgbA1C

       

Control

396 (62.5)

252 (63.6)

144 (36.4)

0.318

68 (40.7)

76 (33.2)

0.092

Uncontrol

238 (37.5)

142 (59.7)

96 (40.3)

 

56 (46.7)

40 (33.9)

 

Diabetes control

       

   Diet +Exercise

56 (8.8)

55(98.2)

1(1.8)

<0.001

0 (0.0)

1 (2.6)

0.319

   Oral medication

513 (81.0)

309 (60.2)

204 (39.8)

 

103 (43.8)

101 (36.3)

 

   Insulin injection

65 (10.2)

30(46.2)

35 (53.8)

 

21 (61.8)

14 (45.2)

 
  1. Data presented are means ± standard deviation for age or number (%) for other characteristics.
  2. * P- Value for difference in characteristics by Diabetes Retinopathy (DR) status, based on chi-square test, Fisher's Exact, Mann-Whitney or t-test, as appropriate.
  3. ¶P- Value for difference in characteristics by gender in patients with DR based on chi-square, Fisher's Exact, Mann-Whitney or t-tests, as appropriate.
  4. §Percentages in two columns showing men/women with DR concern the percentage of each characteristic in comparison with men/women without DR which are omitted to make the table less crowded