Table 1 The Demographic details of study samples.

From: Recurring Amplification at 11q22.1-q22.2 Locus Plays an Important Role in Lymph Node Metastasis and Radioresistance in OSCC

Patient characteristic

nuc ish n = 182 (%)

qRT-PCR n = 154 (%)

IHC n = 209 (%)

Total study samples

OSCC

182

135

132

Leukoplakia (OPL)

NA

NA

57

Healthy Normal

NA

19

20

Age at diagnosis

Median (IQR)

50 (42–58)

50 (42–59)

47 (39–57)

Gender

Male

138 (75.8%)

101 (75%)

169 (81%)

Female

44 (24.2%)

34 (25%)

40 (19%)

Site of OSCC

Gnigivobuccal complex

150 (82.4%)

135 (100%)

162 (85.7%)

Tongue

32 (17.6%)

0 (0%)

27 (14.3%)

Pathological stage

Stage 1 and 2 (Early stage OSCC)

33 (18.1%)

56 (41.5%)

25 (18.9%)

Stage 3 and 4 (Advanced stage OSCC)

149 (81.9%)

79 (58.5%)

107 (81.1%)

Pathological cervical lymph node involvement (N)

Node negative (N0)

94 (51.6%)

79 (58.5%)

79 (59.8%)

Node positive (N+)

88 (48.4%)

56 (41.5%)

53 (40.2%)

Pathological grade

Well

11 (6.1%)

12 (8.9%)

9 (6.8%)

Moderate

126 (69.2%)

87 (64.4%)

82 (62.1%)

Poor

45 (24.7%)

36 (26.7%)

41 (31.1%)

Treatment

Surgery

52 (28.6%)

60 (44.4%)

5 (3.8%)

Surgery + RT

78 (42.9%)

62 (46.0%)

79 (59.8%)

Surgery + CT

4 (2.2%)

1 (0.7%)

NA

Surgery + RT + CT

48 (26.3%)

12 (8.9%)

48 (36.4%)

Radiation compliant cases

50–60 Gy

93 (51.1%)

63 (47%)

85 (64.4%)

<50 Gy

89 (48.9%)

72 (53%)

2 (1.5%)

No information

NA

NA

45 (34.1%)

Habit profile

No Habit

3 (1.6%)

3 (2.2%)

8 (4.2%)

Exclusive tobacco users

63 (34.6%)

79 (58.5%)

66 (34.9%)

Exclusive smoker

3 (1.7%)

2 (1.5%)

16 (8.5%)

Mixed habit**

32 (17.6%)

28 (20.7%)

62 (32.8%)

No information

81 (44.5%)

23 (17%)

37 (19.6%)

  1. NA: Not applicable; N: Tumor classification based on lymph node metastasis; IQR: Inter quartile range; RT: Radiotherapy; CT: Chemotherapy; Gy: Gray; **Mixed Habit: Tobacco chewing along with bidi/cigarette smoking and/or alcohol users.