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Table 2 Variable assignment

From: A multi-center nested case-control study on hospitalization costs and length of stay due to healthcare-associated infection

Variable

Value

Area (classified by GDP)

 Chengdu

1

 Mianyang, Deyang, Yibin, Nanchong, Luzhou, Dazhou, Leshan, Liangshan

2

 Panzhihua, Suining, Meishan, Guang’ an, Neijiang, Zigong

3

 Ziyang, Guangyuan, Ya’ an,Bazhong, Aba, Ganzi

4

Number of hospital beds

  < 300

1

 300 ≤ and < 500

2

 500 ≤ and < 800

3

  ≥ 800

4