Table 6 Regression results comparing the change in cognitive outcome (follow-up minus baseline) between those who increased their MP (or CP) calls weekly from baseline to follow-up, and those who did not increase or reduce their MP (or CP) usage

Tests

Parameters

Estimate

95% CI

Estimate

95% CI

Detection task

Response time (ms)^a

−0.008

−0.042, 0.027

0.007

−0.019, 0.033

Accuracy (%)^b

0.024

−0.036, 0.084

−0.069

−0.127, −0.012

Identification task

Response time (ms)^a

−0.008

−0.034, 0.018

0.007

−0.011, 0.024

Accuracy (%)^b

0.012

−0.044, 0.067

−0.047

−0.097, 0.002

One-back memory task

(Working memory)

Response time (ms)^a

0.009

−0.018, 0.036

0.017

−0.006, 0.041

Accuracy (%)^b

0.014

−0.048, 0.076

−0.029

−0.077, 0.019

One card learning task

(Visual recognition memory & attention)

Response time (ms)^a

0.005

−0.033, 0.043

−0.0008

−0.034, 0.032

Accuracy (%)^b

−0.022

−0.054, 0.009

−0.011

−0.049, 0.026

Go/NoGo

(Response inhibition task)

Response time (ms)^a

−0.030

−0.054, −0.006

0.009

−0.013, 0.032

Accuracy (%)^b

0.011

−0.037, 0.059

−0.013

−0.060, 0.034

Groton maze learning task

Accuracy (total no. of errors)

6.22

2.13, 10.31

−2.77

−8.77, 3.24

Time ratio ((B-A)/A)

Response time (s)

0.056

0.021, 0.090

−0.028

−0.069, 0.013

Time ratio ((D-C)/C)

Response time (s)

−0.048

−0.127, 0.033

−0.003

−0.066, 0.059