Table 1. Baseline characteristics and clinical data of the study population .
| Characteristics | Control n=26 (30) | Exercise n=27 (30) | |
| Continuous variables | Mean (SD) | Mean (SD) | P value |
| Age (yr) | 43.50 (8.60) | 42.70 (9.60) | 0.810 |
| Menarche age (yr) | 12.53 (1.50) | 12.00 (1.80) | 0.240 |
| Marriage age (yr) | 17.34 (6.80) | 18.22 (7.48) | 0.650 |
| Age at first delivery (yr) | 19.84 (7.90) | 19.33 (8.78) | 0.820 |
| Number of parity | 2.53 (1.30) | 2.55 (1.60) | 0.960 |
| Breast feeding (month) | 33.42 (21.10) | 33.7 (27.30) | 0.960 |
| Body mass index (kg/m2) | 27.21 (4.40) | 27.68 (4.90) | 0.710 |
| Categorical variables | Number (%) | Number (%) | P value |
| Educational level | 0.790 | ||
| Illiterate | 3 (11.50) | 3 (11.10) | |
| literate | 23 (88.50) | 24 (88.90) | |
| Working status | 0.260 | ||
| Employed (%) | 6 (23.10) | 10 (37.00) | |
| Unemployed | 20 (76.90) | 17 (63.00) | |
| Family history of breast cancer (%) | 1.000 | ||
| Yes | 2 (7.70) | 3 (11.10) | |
| No | 24 (92.30) | 24 (88.90) | |
| History of breast surgery | 0.680 | ||
| Mastectomy | 13 (50.00) | 12 (44.40) | |
| Lumpectomy | 13 (50.00) | 15 (55.60) | |
| History of radiation therapy | 0.490 | ||
| Yes | 13 (50.00) | 11 (40.70) | |
| No | 13 (50.00) | 16 (59.30) | |
| History of breast chemotherapy | 0.610 | ||
| Yes | 24 (92.30) | 26 (96.30) | |
| No | 2 (7.70) | 1 (3.70) | |
| Hormone replacement therapy | 0.490 | ||
| Yes | 11 (42.30) | 15 (55.60) | |
| No | 15 (57.70) | 12 (44.40) |