Number of patients included | Univariate | Multivariate | |||
---|---|---|---|---|---|
RR | p Value | RR | p Value | ||
Marital status | |||||
Married/cohabiting | 75 | Ref | Ref | ||
Living alone | 16 | 1.16 (0.64 to 2.11) | 0.631 | 1.29 (0.69 to 2.42) | 0.423 |
Living apart | 9 | 0.91 (0.49 to 1.70) | 0.773 | 0.79 (0.42 to 1.47) | 0.454 |
Smoking | |||||
No | 94 | Ref | Ref | ||
Yes | 5 | 0.83 (0.40 to 1.75) | 0.592 | 1.37 (0.68 to 2.75) | 0.374 |
Method of surgery | |||||
Partial mastectomy | 71 | Ref | Ref | ||
Mastectomy | 26 | 1.61 (0.94 to 2.74) | 0.082 | 1.42 (0.78 to 2.60) | 0.254 |
Associated surgery | |||||
Sentinel node/no axillary operation | 79 | Ref | Ref | ||
Axillary lymph node dissection | 21 | 0.50 (0.25 to 0.99) | 0.046 | 0.52 (0.265 to 1.02) | 0.058 |
Age | 98 | 0.00 (–0.02 to 0.03) | 0.723 | 0.00 (–0.02 to 0.02) | 0.913 |
Alcohol intake | |||||
Modest | 51 | Ref | Ref | ||
Moderate/heavy* | 49 | 0.89 (0.60 to 1.32 | 0.550 | 0.78 (0.50 to 1.22) | 0.275 |
Saltin-Grimby Activity Level Scale† | |||||
1 | 10 | Ref | Ref | ||
2 | 64 | 0.94 (0.48 to 1.84) | 0.851 | 1.10 (1.56 to 2.17) | 0.783 |
3+4 | 26 | 1.15 (0.57 to 2.32) | 0.689 | 1.42 (0.71 to 2.84) | 0.320 |
*Moderate/heavy consumption equals more than 1 unit/week.
†Levels of physical activity are categorised accordingly: (1) physically inactive, (2) some light physical activity, (3) regular physical activity and training and (4) regular hard physical training for competition sports.
RR, relative risk.