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Table 5 EMG

From: Results of a randomized controlled trial of level IIb preserving neck dissection in clinically node-negative squamous carcinoma of the oral cavity

Time

2b sparing

Control

p value

Pretreatment

Normal

12

20

 

At 1 month

Normal

2

5

0.349

Mild

5

4

Moderate

3

10

severe

2

1

At 3 months

Normal

6

10

0.538

Mild

3

4

Moderate

1

5

severe

2

1

At 6 months

Normal

9

16

0.07

Mild

0

4

Moderate

2

0

severe

1

0

At 12 months

Normal

9

19

0.03

Mild

3

1

Moderate

0

0

severe

0

0

At 18 months

Normal

11

20

Mild

1

0

Moderate

0

0

severe

0

0