Table 1

Demographics for the study population at baseline

All participantsAChE/Hb <26.3 U/gAChE/Hb ≥26.3 U/g
Total, n364181183
Sex
 Female, n (%)250 (68.7)132 (72.9)118 (64.5)
 Male, n (%)114 (31.3)49 (27.1)65 (35.5)
Age, years46.6 (36.7 to 56.5)46.8 (37.0 to 56.5)46.5 (36.6 to 56.5)
Years of full-time education7.0 (5.0 to 11.0)7.0 (5.0 to 10.0)7.0 (5.0 to 11.0)
Ethnicity
 Baganda, n (%)283 (77.7)137 (75.7)146 (79.8)
 Banyarwanda, n (%)20 (5.5)15 (8.3)5 (2.7)
 Banyankore, n (%)11 (3.0)5 (2.8)6 (3.3)
 Other, n (%)50 (13.7)24 (13.3)26 (14.2)
Ever smoked tobacco?
 Yes, n (%)42 (11.5)17 (9.4)25 (13.7)
 No, n (%)322 (88.5)164 (90.6)158 (86.3)
Current smoker?
 Yes, n (%)15 (4.1)4 (2.2)11 (6.0)
 No, n (%)349 (95.9)177 (97.8)172 (94.0)
Pack-years (ever-smokers only)2.1 (0.9 to 6.8)4.0 (1.2 to 8.4)1.8 (0.8 to 6.2)
Grams of tobacco per day for current smokers1.1 (0.0 to 4.0)1.9 (0.4 to 6.0)1.1 (0.0 to 4.0)
Cooking fuel type in household
 Charcoal, n (%)61 (16.8)37 (20.4)24 (13.1)
 Wood, n (%)298 (81.9)142 (78.5)156 (85.2)
 No food cooked in household, n (%)1 (0.3)0 (0.0)1 (0.5)
 Other, n (%)4 (1.1)2 (1.1)2 (1.1)
Number of hours of cooking in the last week8.0 (0.3 to 17.8)8.0 (0.5 to 16.7)8.0 (0.0 to 20.0)
Cumulated lifetime cooking (‘cooking years’)16.7 (0.9 to 44.9)14.9 (1.2 to 44.7)17.5 (0.0 to 45.2)
BMI, kg/m2 23.3 (21.1 to 26.8)23.2 (21.1 to 26.9)23.3 (21.5 to 26.5)
Mean height across all phases, cm158.9 (154.1 to 164.3)158.5 (152.7 to 163.2)159.5 (155.0 to 164.7)
Ever mixed or applied pesticides?*
 Yes, n (%)283 (77.8)140 (77.3)143 (78.1)
 No, n (%)81 (22.3)41 (22.7)40 (21.9)
Cholinesterase inhibitor insecticides among three most used pesticides, or used in the last week?†
 Yes, n (%)133 (47.0)64 (45.7)69 (48.3)
 No, n (%)114 (40.3)53 (37.9)61 (42.7)
 Unknown, n (%)36 (12.7)23 (16.4)13 (9.1)
Cholinesterase inhibitor insecticides used in the last week?†
 Yes, n (%)22 (7.8)9 (6.4)13 (9.1)
 No, n (%)246 (86.9)120 (85.7)126 (88.1)
 Unknown, n (%)15 (5.3)11 (7.9)4 (2.8)
  • Categorical variables are n (%). Continuous variables are median (IQR). AChE/Hb dichotomised by 26.3 U/g, the median AChE/Hb at baseline. One ‘cooking year’ is defined as cooking for 2.5 hours per day for 365.24 days.

  • *Includes both occupational and domestic use of pesticides.

  • †Data only presented for subjects who have ever mixed or applied pesticides.

  • AChE/Hb, erythrocyte acetylcholinesterase normalised by haemoglobin concentration; BMI, body mass index.