Table 2.
Variation of VVs prevalence according to occupational and clinical data of nurses
| Total | VVs n (%) | Chi-square test | P | COR (95% CI) | |
|---|---|---|---|---|---|
| Occupational data | |||||
| Workplace: | |||||
| Inpatient wards/outpatients | 73 | 5 (6.9) | 1 (r) | ||
| Emergency rooms | 42 | 12 (28.6) | 10 | 0.002 | 5.4 (1.8-16.8) |
| ICU/operative rooms | 86 | 20 (23.3) | 8 | 0.005 | 4.1 (1.5-11.6) |
| Duration of work: | |||||
| <5 years | 131 | 12 (9.2) | 21.4 | 1 (r) | |
| 5 years and more | 70 | 25 (35.7) | <0.001 | 5.5 (2.6-11.9) | |
| Daily working hours: | |||||
| up to 6 hours | 124 | 16 (12.9) | 6.5 | 1 (r) | |
| >6 hours | 77 | 21 (27.3) | 0.011 | 2.5 (1.2-5.2) | |
| Static standing: | |||||
| No | 156 | 23 (14.7) | 6.2 | 1 (r) | |
| Yes | 45 | 14 (31.1) | 0.013 | 2.6 (1.2-5.6) | |
| Lift loads: | |||||
| Never | 73 | 14 (19.2) | 0.2 | 1 (r) | |
| Occasional | 68 | 11 (16.2) | 0.01 | 0.6 | 0.8 (0.3-1.9) |
| Usual/common | 60 | 12 (20.0) | 0.9 | 1.1 (0.4-2.5) | |
| Medical history | |||||
| Family history of varicose vein: | |||||
| No | 121 | 18 (14.9) | 2.5 | 1 (r) | |
| Yes | 80 | 19 (23.8) | 0.1 | 1.8 (0.9-3.7) | |
| Chronic constipation: | 178 | 27 (15.2) | 1 (r) | ||
| No | 28 | 10 (35.7) | 3.1 (1.3-7.5) | ||
| Yes | 6.9 | 0.008 | |||
| Lower limb trauma/injury: | 1 (r) | ||||
| No | 170 | 28 (16.5) | 2.8 | 2.1 (0.9-5.0) | |
| Yes | 31 | 9 (29.0) | 0.1 | ||
| OCP use*: | 1 (r) | ||||
| No | 117 | 16 (13.7) | 6.9 | 2.8 (1.3-6.2) | |
| Yes | 52 | 16 (30.8) | 0.01 | ||
| Gravidity*: | |||||
| None | 75 | 9 (12.0) | 0.2 | 1 (r) | |
| 1 and 2 | 69 | 10 (14.5) | 17.5 | 0.7 | 1.2 (0.5-3.3) |
| 3 and more | 25 | 13 (52.0) | <0.001 | 7.9 (2.8-22.7) |
*Females only. COR: Crude Odds Ratio. r: Reference group. OCP: Oral Contraceptive