Table 1 Baseline characteristics of participants.

From: The relationship between visual impairment and insomnia among people middle-aged and older in India

 

Insomnia symptoms

Total (n = 65,840)

p-value

No (n = 46,378)

Yes (n = 19,462)

Sex

 Male

20,507 (44.2%)

7244 (37.2%)

27,751 (42.1%)

< 0.001

 Female

25,871 (55.8%)

12,218 (62.8%)

38,089 (57.9%)

 

Age

 Mean (SD)

56.9 (11.4)

59.6 (11.6)

57.7 (11.5)

< 0.001

BMI

 Mean (SD)

23.0 (4.72)

22.7 (4.90)

22.9 (4.78)

< 0.001

Marital status

 Married or partnered

37,227 (80.3%)

13,983 (71.8%)

51,210 (77.8%)

< 0.001

 Others

9151 (19.7%)

5479 (28.2%)

14,630 (22.2%)

 

Education level

 No schooling

20,254 (43.7%)

10,047 (51.6%)

30,301 (46.0%)

< 0.001

 Less than 5 years complete

5148 (11.1%)

2345 (12.0%)

7493 (11.4%)

 

 5-9 years complete

11,265 (24.3%)

4317 (22.2%)

15,582 (23.7%)

 

 10 or more years complete

9711 (20.9%)

2753 (14.1%)

12,464 (18.9%)

 

Presbyopia

 No

43,548 (93.9%)

17,745 (91.2%)

61,293 (93.1%)

< 0.001

 Yes

2830 (6.1%)

1717 (8.8%)

4547 (6.9%)

 

Cataracts

 No

41,859 (90.3%)

16,607 (85.3%)

58,466 (88.8%)

< 0.001

 Yes

4519 (9.7%)

2855 (14.7%)

7374 (11.2%)

 

Glaucoma

 No

45,714 (98.6%)

18,957 (97.4%)

64,671 (98.2%)

< 0.001

 Yes

664 (1.4%)

505 (2.6%)

1169 (1.8%)

 

Myopia

 No

35,807 (77.2%)

14,124 (72.6%)

49,931 (75.8%)

< 0.001

 Yes

10,571 (22.8%)

5338 (27.4%)

15,909 (24.2%)

 

Hyperopia

 No

37,191 (80.2%)

14,628 (75.2%)

51,819 (78.7%)

< 0.001

 Yes

9187 (19.8%)

4834 (24.8%)

14,021 (21.3%)

 

Hypertension

 No

35,094 (75.7%)

12,678 (65.1%)

47,772 (72.6%)

< 0.001

 Yes

11,284 (24.3%)

6784 (34.9%)

18,068 (27.4%)

 

Diabetes

 No

41,254 (89.0%)

16,714 (85.9%)

57,968 (88.0%)

< 0.001

 Yes

5124 (11.0%)

2748 (14.1%)

7872 (12.0%)

 

Heart disease

 No

45,130 (97.3%)

18,490 (95.0%)

63,620 (96.6%)

< 0.001

 Yes

1248 (2.7%)

972 (5.0%)

2220 (3.4%)

 

Stroke

 No

45,842 (98.8%)

19,054 (97.9%)

64,896 (98.6%)

< 0.001

 Yes

536 (1.2%)

408 (2.1%)

944 (1.4%)

 

Vigorous physical activity

 Everyday

11,688 (25.2%)

4222 (21.7%)

15,910 (24.2%)

< 0.001

 More than once a week

3426 (7.4%)

1252 (6.4%)

4678 (7.1%)

 

 Once a week

1731 (3.7%)

722 (3.7%)

2453 (3.7%)

 

 One to three times a month

2292 (4.9%)

1074 (5.5%)

3366 (5.1%)

 

 Hardly ever or never

27,241 (58.7%)

12,192 (62.6%)

39,433 (59.9%)

 

SRH

 Excellent

2247 (4.8%)

481 (2.5%)

2728 (4.1%)

< 0.001

 Very good

10,434 (22.5%)

2668 (13.7%)

13,102 (19.9%)

 

 Good

19,381 (41.8%)

6715 (34.5%)

26,096 (39.6%)

 

 Fair

11,294 (24.4%)

6524 (33.5%)

17,818 (27.1%)

 

 Poor

3022 (6.5%)

3074 (15.8%)

6096 (9.3%)

 

Drinking status

 No

38,487 (83.0%)

16,439 (84.5%)

54,926 (83.4%)

< 0.001

 Yes

7891 (17.0%)

3023 (15.5%)

10,914 (16.6%)

 

Smoking status

 No

38,660 (83.4%)

16,161 (83.0%)

54,821 (83.3%)

0.60477

 Yes

7718 (16.6%)

3301 (17.0%)

11,019 (16.7%)

 

Place of residence

 Urban

16,674 (36.0%)

6134 (31.5%)

22,808 (34.6%)

< 0.001

 Rural

29,704 (64.0%)

13,328 (68.5%)

43,032 (65.4%)

 
  1. SD standard deviation, SRH self-rated health, BMI body mass index.