<|begin_of_text|><|start_header_id|>system<|end_header_id|>You are an expert on climate change, human mobility and migration. Answer the question truthfully.<|eot_id|><|start_header_id|>user<|end_header_id|>Here are the title and abstract of a scientific paper probably related to climate change, human mobility and migration..
Title:"Sexually Transmitted Infections and Sexual Practices among Injecting Drug Users in Harm Reduction Centers in Catalonia."
Abstract:"Background: The objectives of the study were to estimate the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae and sexual risk practices, and to identify factors associated with infection by C. trachomatis/N. gonorrhoeae. Methods: Injecting drug users were interviewed at harm reduction centers and biological samples were collected to estimate the prevalence of C. trachomatis and N. gonorrhoeae. Results: The prevalence of C. trachomatis was 2.3%, and this was higher among immigrants (3.6%); the prevalence of N. gonorrhoeae was 0.7% (no differences between Spanish-born and immigrants). Respondents aged <= 25 years had a higher risk of sexually transmitted infections (STIs) (OR 3.39), as did women (OR 3.08). Also associated with having an STI were not having registered employment (OR 4.70), injecting drugs daily (OR 4.21), and having unprotected sex with a stable partner (OR 3.37). Conclusion: Although the prevalence of STIs observed is low, scant condom use makes it necessary for prevention programs to include messages related to sexual risk practices, especially among young people and women. Copyright (C) 2011 S. Karger AG, Basel."
I have six questions you need to answer.
Q1: Is this article is about 'human migration mobility': 1 = yes; 0 = no. Answer with a number. Do not give a textual explanation.

Q2: What drivers of migration and mobility does the article study? 0 = 'other', 1 = 'climate', 2 = 'environment', 3 = 'economic', 4 = 'conflict', 5 = 'political', 6 = 'social', 7 = 'family'. Answer with a number or a sequence of numbers separated by commas. Do not give a textual explanation. 

Q3: What is the overall sentiment of the article?:0 = 'neutral', 1 = 'negative', 2 = 'positive'. Answer with a number. Do not give a textual explanation.

Q4: What type of climate or environmental keywords are explicitly mentioned?:  0 = 'none', 1 = 'algal blooms', 2 = 'infestation', 3 = 'infectious diseases', 4 = 'ocean acidification', 5 = 'sea ice', 6 = 'acid rain', 7 = 'drought', 8 = 'cold wave', 9 = 'heat wave', 10 = 'glacial', 11 = 'wildfire', 12 = 'air pollution', 13 = 'biodiversity loss', 14 = 'coastal erosion', 15 = 'land degradation', 16 = 'deforestation', 17 = 'desertification', 18 = 'water pollution', 19 = 'diebacks', 20 = 'permafrost loss', 21 = 'sand mining', 22 = 'sea level rise', 23 = 'earthquake', 24 = 'tsunami', 25 = 'volcanic', 26 = 'flood', 27 = 'avalanche', 28 = 'landslide', 29 = 'downburst', 30 = 'thunderstorm', 31 = 'sandstorm', 32 = 'haze', 33 = 'storm', 34 = 'cyclone', 35 = 'blizzard', 36 = 'hail', 37 = 'snow', 38 = 'tornado', 39 = 'wind', 40 = 'hurricane', 41 = 'typhoon', 42 = 'other'. Answer with a number or a sequence of numbers separated by commas. Do not give a textual explanation. 

Q5: What discipline does the article belong to?: 0 = 'other', 1 = 'social science', 2 = 'natural science', 3 = 'arts and humanities', 4 = 'multidiscipline and interdiscipline'. Answer with a number. Do not give a textual explanation.

Q6: Does the article apply quantitative and/or statistical analysis?: 0 = 'no', 1 = 'yes'. Answer with a number. Do not give a textual explanation.

Use the following template: 

Q1 = [];
Q2 = [];
Q3 = [];
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Q6 = [].<|eot_id|><|start_header_id|>assistant<|end_header_id|>Answer:

Sexually Transmitted Infections and Sexual Practices among Injecting Drug Users in Harm Reduction Centers in Catalonia
Background: The objectives of the study were to estimate the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae and sexual risk practices, and to identify factors associated with infection by C. trachomatis/N. gonorrhoeae. Methods: Injecting drug users were interviewed at harm reduction centers and biological samples were collected to estimate the prevalence of C. trachomatis and N. gonorrhoeae. Results: The prevalence of C. trachomatis was 2.3%, and this was higher among immigrants (3.6%); the prevalence of N. gonorrhoeae was 0.7% (no differences between Spanish-born and immigrants). Respondents aged <= 25 years had a higher risk of sexually transmitted infections (STIs) (OR 3.39), as did women (OR 3.08). Also associated with having an STI were not having registered employment (OR 4.70), injecting drugs daily (OR 4.21), and having unprotected sex with a stable partner (OR 3.37). Conclusion: Although the prevalence of STIs observed is low, scant condom use makes it necessary for prevention programs to include messages related to sexual risk practices, especially among young people and women. Copyright (C) 2011 S. Karger AG, Basel