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Table 6 Standardized mean differences between one group and the other two combined for the North American ecoregion

From: The effects of nutrients on stream invertebrates: a regional estimation by generalized propensity score

Variable

Unadjusted

Adjusted for the GPS

[1.77, 2.35]

[2.35, 2.69]

[2.69, 3.80]

[1.77, 2.35]

[2.35, 2.69]

[2.69, 3.80]

ELEV

1.24

− 1.95

− 0.71

0.74

− 2.57

0.14

Longitude

0.35

− 0.64

− 0.30

0.77

− 0.57

− 0.95

Log(PRECIP)

2.82

0.27

3.10

0.79

0.52

2.28

Log(AREA)

− 1.23

2.17

0.93

− 0.62

1.99

1.95

Log(CL)

− 3.75

1.30

− 2.23

− 2.35

1.53

− 1.89

Log(HCO3)

− 0.65

− 0.71

− 1.37

1.08

− 1.05

− 0.89

Log(SO4)

− 1.66

0.87

− 0.75

0.59

1.31

− 1.17

SED

− 1.21

− 0.67

− 1.90

− 1.49

− 0.23

− 1.66

STRMTEMP

− 2.69

2.35

− 0.27

− 2.03

1.71

1.38

Percent.AGT

− 0.89

− 1.35

− 2.29

− 0.43

− 1.59

− 3.11

Percent.URB

− 0.94

1.11

0.19

− 0.61

2.55

− 0.73

Percent.Canopy

− 1.11

− 0.31

− 1.43

− 0.72

− 0.66

− 1.05

Riparian.Disturb

− 1.02

0.22

− 0.79

0.72

0.57

0.56

  1. See Table 3 caption for explanation