Table 3

Relative chance of sick leave shorter than 3 weeks

	Number of patients included	Univariate		Multivariate
	Number of patients included	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.