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Table 2 Knowledge of hearing conservation: Arms B and C (12 months)

From: Community-based program to increase use of hearing conservation practices among farm and rural youth: a cluster randomized trial of effectiveness

Solution for fixed effects

Effect

Arm

Estimate

Standard error

DF

t Value

Pr > |t|

Intercept

 

0.89

0.02

30.1

51.68

<.0001

Arm

B

−0.044

0.02

57.5

−2.15

0.04*

Arm

C

0

.

.

.

.

Month

 

0.01

0.00

1548

9.38

<.00

  1. *p < .05
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BMC Public Health

ISSN: 1471-2458

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