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Table 5 A comparison of injury rates between mine licensing status and the work experience of the miners

From: A comparison of licensed and un-licensed artisanal and small-scale gold miners (ASGM) in terms of socio-demographics, work profiles, and injury rates

 

Overall injury rate

Injury rates at unlicensed sites

Injury rates at licensed sites

Rate ratio (95% CI)

P-value

Both Groups

121 injuries /

2245 person years

=5.39 injuries/100 person years

59 injuries /

995 person years

=5.93 injuries/100 person years

62 injuries /

1250 person years

=4.96 injuries/100 person years

1.20 (0.83–1.71)

0.33

5 years and less of ASGM work experience

54 injuries /

659 person years

=8.19 injuries/100 person years

20 injuries /

245 person years

=8.16 injuries/100 person years

34 injuries /

414 person years

=8.21 injuries/100 person years

0.99 (0.57–1.73)

0.99

More than 5 years of ASGM work experience

67 injuries /

1586 person years

=4.22 injuries/100 person years

39 injuries /

750 person years

=5.20 injuries/100 person years

28 injuries /

836 person years

=3.35 injuries/100 person years

1.53 (0.96–2.52)

0.03

Rate Ratio

1.94 (1.36–2.78)

1.57 (0.92–2.69)

2.45 (1.49–4.04)

  

P-value

< 0.001

0.05

< 0.001

  
  1. The p-values refer to rate comparisons within a particular column or row, and for the rate ratio the 95% confidence interval is provided in the brackets