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. 2020 Dec 2;17:96. doi: 10.1186/s12954-020-00447-3

Table 3.

Injection sites

Variable History of skin and soft tissue infection p value Odds ratio
Yes (n = 18) No (n = 62)
n (%) n (%)
Find vein on first injection attempt Always 3 (16.7) 23 (37.1) 0.037** Ref
Most of the time 8 (44.4) 25 (40.3) 1.66 each decrease in freq
Sometimes 1 (5.6) 7 (11.3)
Rarely 4 (22.2) 4 (6.5)
Never 2 (11.1) 2 (3.2)
Anatomical injection location Cubital fossa 8 (44.4) 26 (41.9) 0.831 (overall) Ref
Forearm 4 (22.2) 22 (35.5) 0.59
Hand 2 (11.1) 5 (8.1) 1.3
Upper arm 2 (11.1) 4 (6.5) 1.3
Other 2 (11.1) 5 (8.1) 1.62
Injection type (multiple selection) Vein 16 (88.9) 59 (93.8) 0.333 0.41
Skin 3 (16.7) 2 (3.2) 0.038** 6
Muscle 4 (22.2) 1 (1.6) 0.001** 17.4
I don’t know 1 (5.6) 0 (0.0) 0.062*
Prefer not to answer 0 (0.0) 1 (1.6) 0.588
Injection frequency  > 3 × daily 5 (27.8) 11 (17.7) 0.892
2–3 × daily 3 (16.7) 15 (24.2)
Daily 1 (5.6) 8 (12.9)
 > Weekly 3 (16.7) 11 (17.7)
Weekly 1 (5.6) 7 (11.3)
 > Once in past 30 days 2 (11.1) 5 (8.1)
Once in past 30 days 2 (11.1) 4 (6.5)

*Significant on the 0.10 level

**Significant on the 0.05 level