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Table 1 Predictor means for IMI, OMI, and NewGrowth

From: Does city lockdown prevent the spread of COVID-19? New evidence from the synthetic control method

 

IMI

OMI

NewGrowth

Average of 278 control cities

Variables

Real

Wuhan

Synthetic Wuhan

Real

Wuhan

Synthetic Wuhan

Real

Wuhan

Synthetic Wuhan

GRPper (2019 CNY)

135,136.00

107,547.60

135,136.00

109,783.10

135,136.00

92,652.91

60,116.67

MedIndex

41,478.00

32,685.31

41,478.00

40,900.51

41,478.00

34,760.72

10,885.88

Pop (10, 000 persons)

884.00

774.95

884.00

908.26

  

443.05

Area (\({km}^{2}\))

8,569.00

9,521.92

8,569.00

10,145.51

  

20,119.49

NewGrowth

0.13

0.02

0.13

0.02

  

0.00

NewGrowth (Jan 20)

    

0.30

0.30

0.03

NewGrowth (Jan 21)

    

0.41

0.42

0.01

NewGrowth (Jan 22)

    

0.16

0.17

0.02

IMI

    

3.77

3.72

1.85

OMI

    

10.29

10.11

1.89

AQI

    

116.00

77.92

94.11

MortalRate (% Pop.)

    

0.01

0.01

0.01

Age65+ (% Pop.)

    

0.08

0.08

0.09

Dens (people per\({km}^{2}\))

    

1,031.63

646.12

428.12

IMI (Jan 01–16)

4.26

4.29

4.26

4.93

  

1.32

IMI (Jan 17)

4.40

4.18

4.40

4.43

  

1.53

IMI (Jan 18)

4.23

4.24

4.23

4.37

  

1.69

IMI (Jan 19)

4.15

4.09

4.15

4.26

  

1.68

IMI (Jan 20)

4.18

3.95

4.18

4.21

  

1.72

IMI (Jan 21)

4.24

4.18

4.24

4.52

  

1.98

IMI (Jan 22)

2.90

3.58

2.90

3.86

  

1.85

OMI (Jan 01–16)

5.93

5.28

5.93

5.84

  

1.33

OMI (Jan 17)

6.44

6.45

6.44

6.55

  

1.55

OMI (Jan 18)

7.71

7.60

7.71

7.64

  

1.72

OMI (Jan 19)

7.41

7.55

7.41

7.57

  

1.71

OMI (Jan 20)

8.31

8.31

8.31

8.45

  

1.76

OMI (Jan 21)

10.74

10.51

10.74

10.77

  

2.02

OMI (Jan 22)

11.84

11.01

11.84

11.46

  

1.89

  1. Notes: (1) IMI (Jan 01–16) means that the variable IMI was averaged from January 1 to January 16, IMI (Jan 17) means that the variable IMI took the value of January 17, and the rest may be deduced by analogy. (2) MedIndex was measured by the average of the number of hospitals, beds, and licensed physicians at the city level