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Table 1 Neonates data per birthweight category during the study period

From: Surveillance of healthcare-associated infections in a neonatal intensive care unit in Italy during 2006–2010

Year

2006

2007

2008

2009

2010

Total

Hospitalized patients

339

392

395

427

304

1857

Surveilled patients

310

357

357

384

291

1699

Number of patient days*

8020

9012

9259

8361

8795

43447

≤ 750 g

1127

890

903

475

564

3959

751-1000 g

1939

1194

1400

1055

1773

7361

1001-1500 g

1628

2748

2927

2258

2038

11599

1501-2500 g

2084

2585

2292

2731

2500

12192

>2500 g

1242

1595

1737

1842

1920

8336

Number of umbilical catheter days*

729

803

775

924

1001

4232

≤750 g

92

94

80

124

112

502

751-1000 g

180

74

106

88

217

665

1001-1500 g

191

280

265

259

267

1262

1501-2500 g

173

182

166

267

254

1042

>2500 g

93

173

158

186

151

761

Number of central line days*

1044

1049

1374

1133

1395

5995

≤750 g

213

194

214

125

145

891

751-1000 g

430

213

268

187

370

1468

1001-1500 g

187

263

439

396

402

1687

1501-2500 g

158

229

271

287

331

1276

>2500 g

179

150

182

138

147

796

Number of ventilator days*

1044

843

1075

702

1544

5208

≤750 g

298

286

362

149

258

1353

751-1000 g

492

245

214

77

604

1632

1001-1500 g

142

97

257

115

334

945

1501-2500 g

70

142

156

196

208

772

>2500 g

42

73

86

165

140

506

  1. *Data refer to surveilled patients.