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Table 1 Demographic parameters

From: Effect of IOP based infusion system with and without balanced phaco tip on cumulative dissipated energy and estimated fluid usage in comparison to gravity fed infusion in torsional phacoemulsification

 

Group A

Group B

Group C

p value

Age (years)

0.525

 Sample size

42

42

42

 Mean ± Stdev

62.38 ± 11.35

64.10 ± 9.57

64.76 ± 8.56

 Median

60.5

62.5

64.5

 Min-Max

42–92

42–87

50–86

 Inter quartile range

56–68

59–71

59–70

NC (LOCSш)

0.177

 Sample size

42

42

42

 Mean ± Stdev

5.34 ± 0.89

5.52 ± 0.78

5.2 ± 0.9

 Median

5.2

5.5

5.2

 Min-Max

4.0 –6.9

4.0 –6.9

4.0 –6.9

 Inter quartile range

5.0 –6.0

5.0 –6.0

4.5–5.5

NO (LOCSш)

0.121

 Sample size

42

42

42

 Mean ± Stdev

4.91 ± 0.84

5.05 ± 0.63

4.78 ± 0.87

 Median

4.7

5.0

4.7

 Min-Max

3.5–6.5

3.5–6.0

3.5–6.9

 Inter quartile range

4.5–5.5

4.5–5.5

4.0 –5.0

  1. NC= nuclear colour, NO= nuclear opalescence