Table 3 Associations between farming and GPA

Farm live or work (not visit) at any time prior to index date

22 (44.9 %)

69 (35.2 %)

1.7 (0.8–3.4)

0.16

Farm any^a vs. none in the 12 months prior to index date

23 (46.9 %)

58 (29.6 %)

2.7 (1.3–5.8)

0.009

Farm visit vs. everything else (work, live, none) in the 12 months prior to index date

16 (32.7 %)

23 (11.7 %)

7.2 (2.6–19.4)

<0.001

Farm live vs. everything else (work, visit, none in the 12 months prior to index date

6 (12.2 %)

24 (12.2 %)

1 (0.3–2.9)

1

Farm work vs. everything else (live, visit, none) in the 12 months prior to index date

1 (2.0 %)

11 (5.6 %)

0.3 (0.03–2.6)

0.26

Crops in the 12 months prior to index date (could include livestock)

18 (36.7 %)

54 (27.6 %)

1.7 (0.8–3.6)

0.16

Livestock in the 12 months prior to index date (could include crops)

29 (59.2 %)

85 (43.4)

2.4 (1.1–5.0)

0.02

Crops and livestock (vs. none or exposure to one)

16 (32.7 %)

53 (27.0 %)

1.4 (0.7–2.97

0.39

Crops and livestock vs. no livestock (i.e. includes crops only and excludes livestock only)

16/36 (44.4 %)

53/164 (32.3 %)

2.20 (0.9–5.5)

0.09

Cows

23 (46.9 %)

73 (37.2 %)

1.6 (0.8–3.3)

0.17

Pigs

13 (26.5 %)

51 (26.0)

1.0 (0.5–2.3)

0.94

Horses

18 (36.7 %)

49 (25.0 %)

1.9 (0.93–.9)

0.08

Sheep

26 (53.1 %)

60 (30.6 %)

3.6 (1.7–7.7)

0.001

Chickens

18 (36.7 %)

51 (26.0 %)

2.0 (0.9–4.4)

0.08