Table:
Characteristic	Frequency
Mean age	57 y (SD:±14y)
Sex	Fem: 141 (78.3%)
Male: 39 (21.7%)
Origin	Urban: 124 (68.9%).
Non-Urban: 56 (31.1%).
Thyroid cancer family backgrounds	N (%)
No	119 (66.1%)
Yes	61 (33.9%)
Accelerated Growth of the Thyroid Nodules
No	121 (67.2%)
Yes	59 (32.8%)
Head Radiation
No	163 (90.6%)
Yes	17 (9.4%)
Firm Nodule
No	94 (51.7%)
Yes	86 (47.8%)
Adjacent structure Attachment
No	130 (72.2%)
Yes	50 (27.8%)
Vocal Chord Paralysis
No	130 (72.2%)
Yes	50 (27.8%)
≥4 cm nodule
No	109 (60.6%)
Yes	71 (39.4%)

Parse the following content of the illustration in markdown code: | Characteristic | Frequency | 
 | --- | --- | 
 | Mean age | 57 y (SD:±14y) | 
 | <ROWSPAN=2> Sex | Fem: 141 (78.3%) | 
 | Male: 39 (21.7%) | 
 | <ROWSPAN=2> Origin | Urban: 124 (68.9%). | 
 | Non-Urban: 56 (31.1%). | 
 | Thyroid cancer family backgrounds | N (%) | 
 | No | 119 (66.1%) | 
 |

Yes | 61 (33.9%) | 
 | Accelerated Growth of the Thyroid Nodules |  | 
 | No | 121 (67.2%) | 
 | Yes | 59 (32.8%) | 
 | Head Radiation |  | 
 | No | 163 (90.6%) | 
 | Yes | 17 (9.4%) | 
 | Firm Nodule |  | 
 | No | 94 (51.7%) | 
 | Yes | 86 (47.8%) | 
 | Adjacent structure Attachment |  | 
 | No | 130 (72.2%) | 
 | Yes | 50 (27.8%) | 
 | Vocal Chord Paralysis |  | 
 | No | 130 (72.2%) | 
 | Yes | 50 (27.8%) | 
 | ≥4 cm nodule |  | 
 | No | 109 (60.6%) | 
 | Yes | 71 (39.4%) |