Table 3 Comparison of baseline characteristics among subgroups

Gender (Male/Female)

11/11

7/12

12/8

10/11

9/11

9/11

9/10

0.893^a

Age at surgery (years)

70.50 (44–80)

68 (46–86)

68 (50–82)

70 (46–84)

70 (51–81)

68.5 (49–86)

71 (44–78)

0.518^b

Site of second surgery (Left/Right)

9/13

11/8

11/9

10/11

12/8

11/9

10/9

0.905^a

Hypertension (Present/ Absence)

8/14

6/13

10/10

7/14

7/13

9/11

8/11

0.888^a

Diabetes mellitus (Present/ Absence)

3/19

3/16

4/16

6/15

5/15

6/14

5/14

0.814^c

Classification of cataracts

1.000^c

 Nuclear

13

10

13

11

14

13

12

 Cortical

3

2

2

3

1

2

2

 Posterior subcapsular

2

2

1

2

1

2

1

 Mixed

4

5

4

5

4

3

4

Axial length

23 (20–27)

23 (20–27)

23.5(20–26)

23 (20–26)

23 (20–27)

23 (20–26)

24 (20–27)

0.924^b

Intraocular pressure

15 (11–20)

15 (10–20)

15 (12–19)

15 (11–20)

15 (11–20)

14 (11–20)

15 (11–20)

0.982^b

Nuclear grading

3.5 (2–5)

4 (2–5)

4 (2–5)

4 (2–5)

4 (2–5)

3 (2–5)

3 (2–5)

0.861^b

Mean operating room time (min)

18 (13–26)

19 (13–28)

18.5 (13–26)

19 (13–26)

18 (13–26)

18.5 (13–26)

19 (15–25)

0.964^b

Mean phacoemulsification time (min)

3.5 (2–5)

3 (2–5)

3 (2–6)

3 (2–5)

3 (2–5)

3 (2–5)

4 (2–5)

0.978^b

MCP-1 (pg/ml)

3799

(2658–4989)

3076

(2271–3676)

3222.5 (2357–3582)

3337

(2488–3792)

3126.5 (2747–3998)

3868

(3214–4618)

3267

(2776–3822)

< 0.001^b

Value of anxiety scores

 STAI

8 (6–21)

8 (6–24)

8 (6–24)

8 (6–21)

9 (6–23)

8.5 (6–24)

8 (6–23)

0.960^b

 VAS anxiety

2 (0–7)

2 (0–8)

2 (0–8)

1 (0–8)

2 (0–5)

1.5 (0–8)

1 (0–8)

0.885^b

VAS pain scores

3 (1–7)

2 (0–6)

2 (0–6)

2 (0–6)

2 (0–7)

3.5 (1–7)

2 (0–5)

0.001^b