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. 2011 Mar;11(1):72–78.

Table 1.

Factors associated with ADRs

At admission During hospitalization


No ADR ADR p-value No ADR ADR p-value
All hospitals
Mean Age in years (95% CI) 33.4(28.9 – 37.8) 36.4(35.1 – 37.6) 0.332 35.0(33.3 – 36.6) 37.5(35.6 – 39.3) 0.047
Mean # of drugs at admission
(95% CI)
2.0(1.6 – 2.4) 0.9(0.8 – 1.0) <0.001 1.0(0.9 – 1.1) 0.9(0.8 – 1.0) 0.160
Mean # of drugs during hospitalization
(95% CI)
3.3(3.2 – 3.5) 3.4(3.3 – 3.6) 0.288
Mean #of days of hospital stay
(95% CI)
5.6(4.0 – 7.2) 4.0(3.8 – 4.2) <0.001 4.2(3.9 – 4.5) 3.9(3.6 – 4.1) 0.129
Regional hospital
Mean Age in years (95% CI) 34.8(29.6 – 40.0) 37.6(35.8 – 39.4) 0.502 36.4(34.1 – 38.7) 38.7(36.0 – 41.4) 0.206
Mean # of drugs at admission
(95% CI)
2.2(1.6 – 2.7) 0.9(0.8 – 1.0) <0.001 0.9(0.8 – 1.1) 0.9(0.8 – 1.1) 0.956
Mean # of drugs during hospitalization
(95% CI)
3.7(3.6 – 3.9) 3.9(3.6 – 4.1) 0.449
Mean # of days of hospital
stay (95% CI)
6.7(4.1 – 9.3) 4.5(4.2 – 4.8) 0.005 4.9(4.4 – 5.3) 4.3(3.9 – 4.8) 0.102
District hospital
Mean Age in years (95% CI) 31.5(23.1 – 39.9) 35.1(33.3 – 36.9) 0.433 33.3(31.0 – 35.6) 36.4(33.8 – 38.9) 0.077
Mean # of drugs at admission
(95% CI)
1.8(1.2 – 2.3) 0.9(0.8 – 1.0) <0.001 1.1(0.9 – 1.2) 0.9(0.7 – 1.0) 0.027
Mean # of drugs during
hospitalization (95% CI)
2.8(2.6 – 3.0) 3.0(2.9 – 3.2) 0.062
Mean # of days of hospital stay
(95% CI)
4.2(2.9 – 5.5) 3.4(3.3 – 3.6) 0.079 3.4(3.2 – 3.6) 3.5(3.3 – 3.8) 0.456