Bulletin of the World Health Organization

Pesticide exposure and suicidal ideation in rural communities in Zhejiang province, China

Jianmin Zhang, Robert Stewart, Michael Phillips, Qichang Shi & Martin Prince

Volume 87, Number 10, October 2009, 745-753

Table 2. Associations between suicidal ideation in the 2 years prior to the study and pesticide storage and participants’ demographic, socioeconomic and clinical characteristics, Zhejiang province, China, 2001

Characteristic No. of respondents (Total = 9159) Percentage reporting suicidal ideation in prior 2 yearsa (%) ORa 95% CIa P-value (Wald χ²)
Pesticide storage at home
No 4218 1.07 1.00
Yes 4941 2.54 2.40 1.68–3.43 < 0.001
Storage methods
No pesticide storage 4218 1.07 1.00 < 0.001b
Locked 205 1.37 1.28 0.38–4.26
Unlocked high up 1472 2.08 1.96 1.21–3.16
Easy access 3264 2.82 2.67 1.83–3.90
Gender
Male 4591 1.22 1.00
Female 4568 2.51 2.09 1.49–2.94 < 0.001
Age
≤ 34 years 3206 1.27 1.00 < 0.001b
35–49 years 2990 1.69 1.34 0.86–2.08
≥ 50 years 2963 2.83 2.26 1.51–3.38
Duration of education
≥ 10 years 800 0.68 1.00 < 0.001b
6–9 years 3980 1.32 1.96 0.79–4.84
≤ 5 years 4379 2.63 3.94 1.63–9.52
Annual per capita household income
≥ 5000 renminbi 3008 1.07 1.00 < 0.001b
2500–4999 renminbi 3120 2.17 2.06 1.31–3.22
< 2500 renminbi 3031 2.42 2.30 1.47–3.58
Rural stratum
Coastal region 1835 0.56 1.00
Plains region 2703 2.25 4.06 2.03–8.11 < 0.001b
Mountain region 4621 2.26 4.09 2.09–8.02
Marital status
Never married 1491 1.29 1.00
Ever married 7668 1.97 1.54 0.94–2.54 0.088
Poor physical health
No 8428 1.29 1.00
Yes 731 9.07 7.65 5.39–10.86 < 0.001
Family history of suicidal behaviour
No 8805 1.63 1.00
Yes 354 7.44 4.85 2.90–8.11 < 0.001
GHQ caseness
No 7005 0.58 1.00
Yes 2154 6.18 11.26 7.78–16.31 < 0.001

CI, confidence interval; GHQ, General Health Questionnaire; OR, odds ratio.
a All percentages, odds ratios and 95% confidence intervals were adjusted for design effects and clustering (see statistical methods).
b Result of the test for linear trend is statistically significant.

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