Table 4 Associations^a of the NAOI with different types of stroke during November–March and April–October

SAH NINO3.4

0

0.74 (0.61–0.90)

0.002

1.15 (0.89–1.49)

0.282

 NAOI >-0.92

0

2.48 (0.98–56.28)

0.055

0.95 (0.61–1.48)

0.809

ICH EA/WRI

0

1.25 (1.05–1.48)

0.013

1.09 (0.95–1.25)

0.209

 0 < NAOI < 0.5

0

1.43 (1.08–1.90)

0.012

 NAOI<-0.5

0

1.25 (0.98–1.59)

0.078

HS EA/WRI

0

1.14 (0.99–1.32)

0.064

1.10 (0.99–1.23)

0.089

 NAOI > 0

0

1.29 (1.03–1.62)

0.030

 NAOI <-0.5

0

1.25 (1.02–1.53)

0.028

IS (1) SCAI> 0.25

0

1.08 (0.96–1.21)

0.189

1.12 (1.02–1.24)

0.024

 NINO3.4 < −1.60

0

1.54 (1.19–2.00)

0.001

 EA/WRI < -1.81

0

1.92 (1.34–2.75)

< 0.001

1.58 (1.22–2.04)

0.001

 NAOI (per 1)

0

0.92 (0.85–0.99)

0.028

1.04 (0.98–1.11)

0.166

IS (2) SCAI> 0.25

0

1.07 (0.96–1.21)

0.221

1.12 (1.01–1.24)

0.027

 NINO3.4 < −1.60

0

1.55 (1.19–2.01)

0.001

 EA/WRI < -1.81

0

2.00 (1.40–2.87)

< 0.001

1.59 (1.23–2.05)

< 0.001

 NAOI < 0.5

0

1.25 (1.10–1.41)

0.001

0.91 (0.81–1.02)

0.097