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Table 4 Relative risk estimates from mixed-effects poisson regression model of HWs with TB and those without TB (N = 32,039)

From: The neglected burden of tuberculosis disease among health workers: a decade-long cohort study in South Africa

 

Unadjusted

P-Value

Adjusted

P-Value

RR (95% CI)

 

RR (95% CI)

 

Birth Year

 1980–1989

1·00

 

1·00

 

 1970–1979

4·28 (3·24 to 5·65)

<0·0001

3·84 (2·89 to 5·09)

<0·0001

 1960–1969

7·95 (6·06 to 10·42)

<0·0001

7·29 (5·48 to 9·72)

<0·0001

 1950–1959

6·10 (4·59 to 8·10)

<0·0001

7·11 (5·22 to 9·69)

<0·0001

 1940–1949

3·43 (2·43 to 4·85)

<0·0001

4·03 (2·78 to 5·83)

<0·0001

 1930–1939

1·79 (0·16 to 20·84)

0·99

1·39 (0·13 to 15·13)

0·99

Race

 White

1·00

 

1·00

 

 African

6·74 (4·98 to 9·11)

<0·0001

5·30 (3·90 to 7·20)

<0·0001

 Coloured

3·59 (2·32 to 5·56)

<0·0001

2·90 (1·87 to 4·50)

<0·0001

 Asian

1·15 (0·18 to 7·02)

0·99

1·05 (0·18 to 6·07)

0·99

Sex

 Female

1·00

 

1·00

 

 Male

1·41 (1·31 to 1·53)

<0·0001

1·51 (1·38 to 1·64)

<0·0001

Facility Type

 Non-Clinical

1·00

 

 Hospital

2·04 (0·79 to 5·26)

0·19

 Clinic

2·47 (0·67 to 9·12)

0·24

Occupation

 Allied Health Professional

1·00

 

1·00

 

 Doctor/Surgeon

1·13 (0·83 to 1·53)

0·84

0·85 (0·62 to 1·15)

0·60

 Nurse

2·07 (1·58 to 2·71)

<0·0001

1·24 (0·93 to 1·63)

0·25

 Administrative/Clerical

1·74 (1·29 to 2·32)

<0·0001

1·13 (0·84 to 1·51)

0·82

 Support Staff

2·36 (1·79 to 3·11)

<0·0001

1·28 (0·96 to 1·70)

0·14

Duration of Employment (yrs)

 20+

1·00

 

1·00

 

 16–20

2·05 (1·71 to 2·47)

<0·0001

1·97 (1·63 to 2·39)

<0·0001

 11–15

3·36 (2·80 to 4·04)

<0·0001

3·60 (2·97 to 4·37)

<0·0001

 6–10

1·21 (0·99 to 1·48)

0·09

1·72 (1·38 to 2·14)

<0·0001

 1–5

1·06 (0·89 to 1·28)

0·97

1·92 (1·56 to 2·37)

<0·0001

  < 1

2·74 (2·24 to 3·53)

0·03

1·60 (1·44 to 1·82)

<0·0001