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. 2016 May 18;11(5):e0155517. doi: 10.1371/journal.pone.0155517

Table 3. Contributing factors for the spontaneous reporting of adverse drug reactions.

Characteristics Reporting group, n (%) Non- reporting group, n (%) ORunadj (95% CI) ORadj (95% CI)*
Age group
    ≤ 40 years 108 (37.0) 226 (32.5) 1.0 1.0
    41–50 years 105 (36.0) 243 (34.9) 0.90 (0.65–1.25) 0.91 (0.59–1.40)
    51–60 years 64 (21.9) 151 (21.7) 0.88 (0.61–1.29) 0.71 (0.43–1.16)
    ≥ 61 years 15 (5.1) 76 (10.9) 0.41 (0.23–0.75) 0.16 (0.06–0.42)
Sex
    Female 142 (48.6) 435 (62.1) 1.0 1.0
    Male 150 (51.4) 265 (37.9) 1.73 (1.32–2.29) 1.39 (0.95–2.03)
Career in community pharmacy
    ≤ 10 years 98 (34.1) 303 (44.6) 1.0 1.0
    11–20 years 109 (38.0) 201 (29.6) 1.68 (1.21–2.32) 1.62 (0.98–2.68)
    ≥ 21 years 80 (27.9) 175 (25.8) 1.41 (0.99–2.00) 1.79 (0.88–3.65)
Prior experience of ADR
    No 5 (1.7) 120 (17.1) 1.0 1.0
    Yes 289 (98.3) 583 (82.9) 11.90 (4.81–29.43) 6.46 (2.46–16.98)
General knowledge of SR
    Low (0–1 item) 16 (5.5) 297 (43.4) 1.0 1.0
    Moderate (2 items) 87 (30.1) 192 (28.0) 8.41 (4.79–14.77) 11.71 (5.73–23.91)
    High (3–4 items) 186 (64.4) 196 (28.6) 17.62 (10.25–30.28) 23.89 (11.80–48.35)
Knowledge on eligible reporters and reportable items
    Low (0 item) 120 (40.8) 455 (64.7) 1.0 1.0
    Moderate (1 item) 118 (40.1) 197 (28.0) 2.27 (1.68–3.08) 1.56 (1.06–2.31)
    High (2 items) 56 (19.0) 51 (7.3) 4.16 (2.71–6.40) 3.58 (1.96–6.56)
Professional responsibility
    No 5 (1.7) 35 (5.0) 1.0 1.0
    Yes 289 (98.3) 667 (95.0) 3.03 (1.18–7.82) 2.29 (0.67–7.82)
Level of attitudes towards obstacles to SR
    Low (≤ 3 items) 132 (50.0) 166 (28.0) 1.0 1.0
    Moderate (4–5 items) 81 (30.7) 198 (33.4) 0.51 (0.36–0.73) 0.59 (0.38–0.91)
    High (≥ 6 items) 51 (19.3) 228 (38.5) 0.28 (0.19–0.41) 0.36 (0.23–0.57)
Attitudes towards strategies to improve SR
    Low (≤ 6 items) 80 (28.7) 158 (25.8) 1.0 1.0
    Moderate (7 items) 66 (23.7) 146 (23.8) 0.89 (0.60–1.33) 0.84 (0.51–1.39)
    High (8 items) 133 (47.7) 309 (50.4) 0.85 (0.60–1.19) 0.79 (0.51–1.24)
Location of pharmacy
    Rural areas 112 (38.2) 271 (38.3) 1.0 1.0
    Metropolitan areas 181 (61.8) 436 (61.7) 1.00 (0.76–1.33) 0.96 (0.65–1.42)
Daily prescription volume
    ≤ 75 138 (47.3) 332 (47.9) 1.0 1.0
    76–150 94 (32.2) 229 (33.0) 0.99 (0.72–1.35) 0.85 (0.55–1.30)
    ≥151 60 (20.5) 132 (19.0) 1.09 (0.76–1.57) 1.10 (0.65–1.85)

*Multivariate analysis adjusting for all variables in the table based on 774 pharmacists.

p < 0.05.

Abbreviations: ORunadj, unadjusted odds ratio; ORadj, adjusted odds ratio; CI, confidence interval; ADR, adverse drug reaction; SR, spontaneous reporting.