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Table 1 Patient characteristics at baseline

From: Prolonged preoperative treatment of acromegaly with Somatostatin analogs may improve surgical outcome in patients with invasive pituitary macroadenoma (Knosp grades 1–3): a retrospective cohort study conducted at a single center

 

Preoperative medical therapy (n = 81)

Primary surgery (n = 277)

P

M/F

41/40

125/152

0.38

Age of onset (y)

34.8 ± 11.4

34.6 ± 11.7

0.86

Age of diagnosis (y)

40.3 ± 11.9

40.1 ± 12.1

0.89

Mean basal GH (μg/L)

44.47 ± 16.13

48.17 ± 17.52

0.68

Mean IGF-1 (μg/L)

841.27 ± 313.26

889.50 ± 306.21

0.31

Microadenoma (%)

10 (12.3)

29 (10.5)

0.63

Macroadenoma (%)

71 (87.7)

248 (89.5)

0.63

aTumor invasion (Knosp)

67

135

0.161

 Knosp 0 (%)

21 (31.3)

49 (36.3)

 

 Knosp 1 (%)

6 (9.0)

12 (8.9)

 

 Knosp 2 (%)

19 (28.4)

42 (31.1)

 

 Knosp 3 (%)

14 (20.9)

29 (21.5)

 

 Knosp 4 (%)

7 (10.4)

3 (2.2)

 
  1. aClassified according to magnetic resonance imaging performed at Peking Union Medical College Hospital (China)