Table 1.
Baseline demographic and clinical characteristics of bladder cancer patients and healthy controls
| Variables | Cases n = 240 [n (%)] |
Controls n = 270 [n (%)] |
Chi square#
p value |
|---|---|---|---|
| Sex | |||
| Female | 29 (12.1) | 21 (7.8) | 0.105 |
| Male | 211 (87.9) | 249 (92.2) | |
| Age (years) | |||
| Mean age- ±SD | 56.96 ± 13.86 | 54.50 ± 10.23 | 0.138$ |
| Smoking* | |||
| Non smokers | 48 (29.6) | 214 (79.3) | <0.001 |
| Smokers | 116 (70.4) | 56 (20.7) | |
| Tumor grade stage | |||
| TaG1 | 48 (20.0) | – | – |
| TaG2–3 + T1G1–3 | 128 (53.3) | – | |
| T2+ | 64 (26.7) | – | |
| Intravesical therapy | |||
| Non treated | 86 (47.7) | – | – |
| BCG induction (BCG i + m) | 94 (52.3) | – | |
| Event | |||
| Recurrence | 74 (43.9) | – | – |
| Non-recurrence | 95 (56.1) | – | |
$No significant age difference between controls and patients
#Student t test was used to determine the p value
* The sum could not add up to the total due to some missing values
BCG i + m, Bacillus Calmette-Guerin induction + maintenance
The statistically significant values are shown in bold