Table 3 Comparison of associations of cases of spondylolisthesis with controls by occupational group and occupational activities stratified by age

 Clerical / technical experts

 Agricultural / Fishermen

(1.32,8.81)

(1.29,9.29)

(0.16,1.16)

(0.16,1.17)

 Factory/construction

(0.99,8.64)

(0.94,8.78)

(0.21,2.47)

(0.21,2.43)

 Clinical / Housekeepers / Shop workers / Hairdressers / Dressmakers

(0.73,2.84)

(0.66,2.69)

(0.51,2.71)

(0.45,2.59)

 Teachers

 Other/NA

(0.40,2.28)

(0.38,2.17)

(0.39,2.84)

(0.37,2.76)

 Sitting on a chair ≥2 h/day

(0.48,1.39)

(0.48,1.42)

(1.03,3.40)

(1.06,3.57)

 Standing ≥2 h/day

(0.42,1.36)

(0.40,1.31)

(0.25,1.22)

(0.24,1.20)

 Kneeling ≥1 h/day

(0.46,2.11)

(0.43,2.04)

(0.69,2.90)

(0.65,2.79)

 Squatting ≥1 h/day

(0.49,2.03)

(0.44,1.90)

(0.52,1.93)

(0.51,1.88)

 Driving ≥4 h/day

(0.79,6.88)

(0.77,7.07)

(0.68,5.86)

(0.83,8.15)

 Walking ≥3 km/day

(0.71,2.47)

(0.66,2.35)

(0.29,0.98)

(0.29,1.02)

 Going up/down stairs ≥30 floors/day

(0.17,0.88)

(0.15,0.82)

(0.49,1.91)

(0.50,1.97)

 Climbing up slopes or steps ≥1 h/day

(0.19,4.07)

(0.21,4.56)

(0.26,1.18)

(0.25,1.23)

 Lifting loads of ≥10 kg at least once per week

(0.51,1.53)

(0.50,1.55)

(0.30,1.00)

(0.31,1.04)