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Table 1 Characteristics of patients included in point prevalence surveys by year; OPBG, 2008–2016

From: Prevalence of antibiotic use in a tertiary care hospital in Italy, 2008–2016

 

2008 (N = 379)

2009 (N = 267)

2010 (N = 320)

2011 (N = 320)

2012 (N = 353)

2013 (N = 344)

2014 (N = 333)

2015 (N = 368)

2016 (N = 331)

Total (n = 3015)

P-value for trend

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

Sex

 Female

160 (42.2)

111 (41.6)

148 (46.2)

158 (49.4)

154 (43.6)

143 (41.6)

154 (46.2)

165 (44.8)

159 (48.0)

1352 (44.8)

0.2

Age

 ≤2 months

59 (15.6)

44 (16.5)

59 (18.4)

53 (16.6)

66 (18.7)

45 (13.1)

55 (16.5)

63 (17.1)

63 (19.0)

507 (16.8)

0.6

 3–11 months

58 (15.3)

42 (15.7)

57 (17.8)

57 (17.8)

64 (18.1)

57 (16.6)

55 (16.5)

54 (14.7)

53 (16.0)

497 (16.5)

0.7

 1–5 years

102 (26.9)

77 (28.8)

71 (22.2)

77 (24.1)

92 (26.1)

82 (23.8)

76 (22.8)

98 (26.6)

85 (25.7)

760 (25.2)

0.6

 6–11 years

104 (27.4)

62 (23.2)

91 (28.4)

82 (25.6)

88 (24.9)

94 (27.3)

92 (27.6)

84 (22.8)

79 (23.9)

776 (25.7)

0.3

 ≥ 12 years

55 (14.5)

40 (15.0)

40 (12.5)

51 (15.9)

42 (11.9)

66 (19.2)

55 (16.5)

69 (18.8)

51 (15.4)

469 (15.6)

0.09

 Missing

1 (0.3)

2 (0.7)

2 (0.6)

0 (0.0)

1 (0.3)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

6 (0.2)

 

Length of hospital stay (days)

 ≤7

220 (58.1)

132 (49.4)

159 (49.7)

165 (51.6)

152 (43.1)

170 (49.4)

150 (45.1)

198 (53.8)

134 (40.5)

1480 (49.1)

0.0008

 8–30

96 (25.3)

82 (30.7)

109 (34.1)

95 (29.7)

132 (37.4)

103 (29.9)

111 (33.3)

113 (30.7)

121 (36.5)

962 (31.9)

0.02

 > 30

63 (16.6)

52 (19.5)

52 (16.2)

60 (18.7)

69 (19.5)

70 (20.3)

72 (21.6)

57 (15.5)

76 (23.0)

571 (18.9)

0.1

 Missing

0 (0.0)

1 (0.4)

0 (0.0)

0 (0.0)

0 (0.0)

1 (0.3)

0 (0.0)

0 (0.0)

0 (0.0)

2 (0.1)

 

Ward Type

 Medical unit

131 (34.6)

99 (37.1)

103 (32.2)

117 (36.5)

107 (30.3)

111 (32.2)

126 (37.8)

112 (30.4)

125 (37.8)

1031 (34.2)

0.9

 Surgical unit

136 (35.9)

67 (25.1)

93 (29.1)

84 (26.3)

100 (28.4)

88 (25.6)

71 (21.4)

104 (28.3)

67 (20.2)

810 (26.9)

0.0001

 Medical subspecialty unit

80 (21.1)

76 (28.4)

91 (28.4)

84 (26.3)

113 (32.0)

112 (32.6)

101 (30.3)

106 (28.8)

98 (29.6)

861 (28.6)

0.01

 Intensive care unit

32 (8.4)

25 (9.4)

33 (10.3)

35 (10.9)

33 (9.3)

33 (9.6)

35 (10.5)

46 (12.5)

41 (12.4)

313 (10.4)

0.05