Skip to main content

Table 1 Generalized additive model (GAM) with cubic spline analysis for daily urolithiasis incidence between 2002 and 2017 according to time-lags

From: Association of meteorological factors and ambient air pollution on medical care utilization for urolithiasis: a population-based time-series study

Time

Variables

Ureteral Stone

Univariate

Multivariate

RR

ER(%)

95% CI

P-value

RR

ER(%)

95% CI

P-value

Lag 0

Avg. Temp.

1.0005

0.05

[1.0002–1.0035]

0.0007

1.0021

0.21

[1.0012–1.0031]

<.0001

PM2.5

1.0041

0.41

[1.0039–1.0068]

<.0001

1.0000

0.00

[0.9996–1.0004]

0.8664

CO.

1.0150

1.50

[1.0137–1.0290]

<.0001

1.0171

1.71

[1.0157–1.0185]

<.0001

Lag 1

Avg. Temp.

1.0005

0.05

[1.0002–1.0008]

0.0009

1.0020

0.20

[1.0011–1.0029]

<.0001

PM2.5

1.0002

0.02

[0.9998–1.0006]

0.2517

1.0001

0.01

[0.9997–1.0006]

0.4984

CO.

1.0123

1.23

[1.0109–1.0138]

<.0001

1.0151

1.51

[1.0136–1.0165]

<.0001

Lag 2

Avg. Temp.

1.0004

0.04

[1.0002–1.0008]

0.0012

1.0009

0.09

[1.0003–1.0014]

0.0016

PM2.5

1.0000

0.00

[0.9996–1.0004]

0.9435

1.0004

0.04

[1.0000–1.0009]

0.0343

CO.

1.0148

1.48

[1.0101–1.0129]

<.0001

1.0167

1.67

[1.0151–1.0183]

<.0001

Lag 3

Avg. Temp.

1.0005

0.05

[1.0002–1.0008]

0.0008

1.0009

0.09

[1.0003–1.0014]

0.0017

PM2.5

1.0001

0.01

[0.9997–1.0005]

0.6229

1.0005

0.05

[1.0001–1.0009]

0.0137

CO.

1.0124

1.24

[1.0110–1.0139]

<.0001

1.0172

1.72

[1.0156–1.0188]

<.0001

Lag 4

Avg. Temp.

1.0005

0.05

[1.0003–1.0008]

0.0003

1.0009

0.09

[1.0004–1.0014]

0.0011

PM2.5

1.0000

0.00

[0.9997–1.0005]

0.7510

1.0005

0.05

[1.0001–1.0009]

0.0253

CO.

1.0133

1.33

[1.0119–1.0148]

<.0001

1.0188

1.88

[1.0172–1.0204]

<.0001

Lag 5

Avg. Temp.

1.0005

0.05

[1.0002–1.0008]

0.0007

1.0009

0.09

[1.0004–1.0014]

0.0009

PM2.5

1.0000

0.00

[0.9996–1.0005]

0.7953

1.0004

0.04

[0.9999–1.0008]

0.1022

CO.

1.0132

1.32

[1.0118–1.0147]

<.0001

1.0187

1.87

[1.0171–1.0203]

<.0001

Lag 6

Avg. Temp.

1.0004

0.04

[1.0002–1.0008]

0.0013

1.0008

0.08

[1.0003–1.0014]

0.0027

PM2.5

1.0002

0.02

[0.9998–1.0006]

0.3182

1.0001

0.01

[0.9997–1.0005]

0.5135

CO.

1.0135

1.35

[1.0122–1.0150]

<.0001

1.0189

1.89

[1.0173–1.0204]

<.0001

Lag 7

Avg. Temp.

1.0004

0.04

[1.0002–1.0008]

0.0023

1.0007

0.07

[1.0004–1.0010]

0.0096

PM2.5

1.0000

0.00

[0.9997–1.0005]

0.7174

1.0004

0.04

[1.0000–1.0008]

0.0805

CO.

1.0135

1.35

[1.0121–1.0149]

<.0001

1.0178

1.78

[1.0162–1.0193]

<.0001

Lag 8

Avg. Temp.

1.0004

0.04

[1.0002–1.0008]

0.0019

1.0006

0.06

[1.0002–1.0009]

0.0177

PM2.5

1.0003

0.03

[0.9999–1.0007]

0.1321

1.0001

0.01

[0.9997–1.0005]

0.6095

CO.

1.0124

1.24

[1.0110–1.0138]

<.0001

1.0127

1.27

[1.0111–1.0143]

<.0001

Lag 9

Avg. Temp.

1.0004

0.04

[1.0001–1.0007]

0.0248

1.0004

0.04

[1.0001–1.0008]

0.0098

PM2.5

1.0002

0.02

[0.9998–1.0007]

0.2368

1.0002

0.02

[0.9997–1.0006]

0.4346

CO.

1.0090

0.90

[1.0074–1.0107]

<.0001

1.0087

0.87

[1.0071–1.0102]

<.0001

Lag 10

Avg. Temp.

1.0004

0.04

[0.9999–1.0009]

0.0668

1.0002

0.02

[0.9999–1.0005]

0.1505

PM2.5

1.0002

0.02

[0.9998–1.0006]

0.3368

1.0002

0.02

[0.9998–1.0006]

0.3989

CO.

1.0020

0.20

[1.0000–1.0041]

0.0445

1.0037

0.37

[0.9998–1.0076]

0.2551

Time

Variables

Renal Stone

Univariate

Multivariate

RR

ER(%)

95% CI

P-value

RR

ER(%)

95% CI

P-value

Lag 0

Avg. Temp.

1.0027

0.27

[1.0015–1.0144]

<.0001

1.0005

0.05

[0.9998–1.0071]

0.1425

PM2.5

1.0004

0.04

[0.9999–1.0054]

0.1236

1.0005

0.05

[1.0000–1.0055]

0.0488

CO.

1.0163

1.63

[1.0147–1.0318]

<.0001

1.0205

2.05

[1.0187–1.0381]

<.0001

Lag 1

Avg. Temp.

1.0026

0.26

[1.0015–1.0038]

<.0001

1.0006

0.06

[0.9999–1.0012]

0.0936

PM2.5

1.0004

0.04

[0.9999–1.0009]

0.1524

1.0004

0.04

[0.9999–1.0009]

0.1027

CO.

1.0162

1.62

[1.0146–1.0178]

<.0001

1.0190

1.90

[1.0172–1.0208]

<.0001

Lag 2

Avg. Temp.

1.0025

0.25

[1.0013–1.0037]

<.0001

1.0005

0.05

[0.9998–1.0012]

0.1425

PM2.5

1.0004

0.04

[0.9999–1.0009]

0.1226

1.0005

0.05

[1.0000–1.0010]

0.0488

CO.

1.0152

1.52

[1.0136–1.0167]

<.0001

1.0195

1.95

[1.0179–1.0210]

<.0001

Lag 3

Avg. Temp.

1.0025

0.25

[1.0013–1.0036]

<.0001

1.0006

0.06

[0.9999–1.0012]

0.0897

PM2.5

1.0004

0.04

[0.9999–1.0009]

0.1345

1.0004

0.04

[0.9999–1.0009]

0.0964

CO.

1.0145

1.45

[1.0129–1.0161]

<.0001

1.0175

1.75

[1.0158–1.0193]

<.0001

Lag 4

Avg. Temp.

1.0020

0.20

[1.0008–1.0031]

0.0010

1.0004

0.04

[0.9998–1.0011]

0.2062

PM2.5

1.0005

0.05

[1.0000–1.0010]

0.0551

1.0006

0.06

[1.0001–1.0011]

0.0195

CO.

1.0157

1.57

[1.0141–1.0172]

<.0001

1.0165

1.65

[1.0149–1.0181]

<.0001

Lag 5

Avg. Temp.

1.0019

0.19

[1.0007–1.0030]

0.0013

1.0004

0.04

[0.9997–1.0011]

0.2333

PM2.5

1.0004

0.04

[0.9999–1.0009]

0.1392

1.0004

0.04

[0.9999–1.0009]

0.0957

CO.

1.0156

1.56

[1.0140–1.0172]

<.0001

1.0152

1.52

[1.0134–1.0170]

<.0001

Lag 6

Avg. Temp.

1.0020

0.20

[1.0008–1.0031]

0.0008

1.0005

0.05

[0.9998–1.0012]

0.1316

PM2.5

1.0001

0.01

[0.9996–1.0006]

0.6866

1.0001

0.01

[0.9996–1.0006]

0.8084

CO.

1.0149

1.49

[1.0133–1.0165]

<.0001

1.0136

1.36

[1.0122–1.0150]

<.0001

Lag 7

Avg. Temp.

1.0026

0.26

[1.0014–1.0037]

<.0001

1.0007

0.07

[1.0001–1.0014]

0.0314

PM2.5

1.0004

0.04

[0.9999–1.0009]

0.1535

1.0002

0.02

[0.9997–1.0007]

0.4583

CO.

1.0117

1.17

[1.0101–1.0133]

<.0001

1.0124

1.24

[1.0106–1.0142]

<.0001

Lag 8

Avg. Temp.

1.0026

0.26

[1.0015–1.0038]

<.0001

1.0006

0.06

[1.0000–1.0013]

0.0617

PM2.5

1.0001

0.01

[0.9996–1.0007]

0.5666

1.0000

0.00

[0.9995–1.0005]

0.9405

CO.

1.0096

0.96

[1.0080–1.0111]

<.0001

1.0091

0.91

[1.0077–1.0105]

<.0001

Lag 9

Avg. Temp.

1.0018

0.18

[1.0006–1.0030]

0.0325

1.0006

0.06

[1.0000–1.0013]

0.0608

PM2.5

1.0002

0.02

[0.9997–1.0007]

0.4270

1.0001

0.01

[0.9996–1.0006]

0.7988

CO.

1.0058

0.58

[1.0042–1.0074]

<.0001

1.0038

0.38

[1.0028–1.0048]

<.0001

Lag 10

Avg. Temp.

1.0002

0.02

[0.9998–1.0005]

0.0710

1.0006

0.06

[1.0000–1.0013]

0.0581

PM2.5

1.0000

0.00

[0.9995–1.0005]

0.9853

1.0002

0.02

[0.9997–1.0008]

0.3878

CO.

1.0014

0.14

[0.9998–1.0030]

0.1138

1.0011

0.11

[0.9999–1.0022]

0.0874

  1. Avg. Temp. Average Temperature, RR relative risks, CI confidence intervals