# Musculoskeletaleltal Symptoms and Assessment of Ergonomic Risk Factors on a Coffee Farm
## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multirow{3}{*}{**Body Region**} & \multicolumn{6}{c}{**Frequency of Workers**} \\ \cline{2-11}  & \multicolumn{2}{c}{**Smoker**} & \multicolumn{2}{c}{**Alcohol**} & \multicolumn{2}{c}{**Gender**} & \multicolumn{2}{c}{**Height (m)**} & \multicolumn{2}{c}{**Weight (kg)**} & \multicolumn{2}{c}{**Total**} \\ \cline{2-11}  & \multicolumn{2}{c}{**No**} & \multicolumn{2}{c}{**Yes**} & \multicolumn{1}{c}{**No**} & \multicolumn{1}{c}{**Yes**} & \multicolumn{1}{c}{**F**} & \multicolumn{1}{c}{**M**} & \multicolumn{1}{c}{**1.60–1.65**} & \multicolumn{1}{c}{**>1.65–1.70**} & \multicolumn{1}{c}{**65–75**} & \multicolumn{1}{c}{**>75–85**} & \\ \hline Neck & 14 & 13 & 9 & 18 & 7 & 20 & 13 & 14 & 15 & 12 & 27 \\ Right shoulder & 18 & 14 & 11 & 21 & 7 & 25 & 13 & 19 & 17 & 15 & 32 \\ Left shoulder & 18 & 14 & 11 & 21 & 7 & 25 & 13 & 19 & 17 & 15 & 32 \\ Upper back & 19 & 16 & 12 & 23 & 8 & 27 & 14 & 21 & 18 & 17 & 35 \\ Lower back & 18 & 15 & 11 & 22 & 7 & 26 & 12 & 21 & 17 & 16 & 33 \\ Right wrist & 16 & 15 & 12 & 19 & 8 & 23 & 13 & 18 & 18 & 13 & 31 \\ Left wrist & 16 & 14 & 12 & 18 & 8 & 22 & 13 & 17 & 17 & 13 & 30 \\ Right knee & 20 & 15 & 13 & 22 & 9 & 26 & 14 & 21 & 17 & 18 & 35 \\ Left knee & 20 & 14 & 13 & 21 & 9 & 25 & 13 & 21 & 16 & 18 & 34 \\ Right foot & 19 & 15 & 12 & 22 & 9 & 25 & 14 & 20 & 17 & 17 & 34 \\ Left foot & 19 & 15 & 12 & 22 & 9 & 25 & 14 & 20 & 17 & 17 & 34 \\ Total & 24 & 24 & 17 & 31 & 12 & 36 & 20 & 28 & 24 & 24 & \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Frequency (f) of workers by personal characteristics who perceived musculoskeletal symptoms by body region for more than 30 days and all days during the last 12 months. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{3}{*}{**Body Region**} & \multicolumn{6}{c}{**Frequency and Percentage of Workers**} \\ \cline{2-7}  & \multicolumn{2}{c}{**Cutter (_n = 23_)**} & \multicolumn{2}{c}{**Picker (_n = 17_)**} & \multicolumn{2}{c}{**Processor (_n = 8_)**} & \multicolumn{2}{c}{**Total (_n = 48_)**} \\ \cline{2-7}  & **f** & \% & **f** & \% & **f** & \% & \\ \hline Neck & 15 & 65.2 & 9 & 52.9 & 3 & 37.5 & 27 \\ Right & 15 & 65.2 & 13 & 76.5 & 4 & 50.0 & 32 \\ shoulder & 15 & 65.2 & 13 & 76.5 & 4 & 50.0 & 32 \\ Left shoulder & 16 & 69.6 & 13 & 76.5 & 6 & 75.0 & 35 \\ Upper back & 14 & 60.9 & 13 & 76.5 & 6 & 75.0 & 33 \\ Right wrist & 16 & 69.6 & 9 & 52.9 & 6 & 75.0 & 31 \\ Left wrist & 16 & 69.6 & 9 & 52.9 & 5 & 62.5 & 30 \\ Right knee & 16 & 69.6 & 13 & 76.5 & 6 & 75.0 & 35 \\ Left knee & 16 & 69.6 & 13 & 76.5 & 5 & 62.5 & 34 \\ Right foot & 17 & 73.9 & 12 & 70.6 & 5 & 62.5 & 34 \\ Left foot & 17 & 73.9 & 12 & 70.6 & 5 & 62.5 & 34 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Frequency (f) and percentage (%) of workers by job who perceived musculoskeletal symptoms by body region for more than 30 days and all days during the last 12 months. Table 8 shows the relationship between the musculoskeletal symptoms for each body region; statistically significant differences were found by job type, smoker, alcohol drinker, gender, BMI level and age level. Statistically significant differences were observed between type of work with symptoms in the neck, right wrist, and left wrist, between alcohol consumption with symptoms in the right wrist and left wrist, between BMI level with symptoms in the right shoulder, left shoulder, right foot, and left foot, and between age level with right shoulder, left shoulder, low back, right foot and left foot. Figure 1 shows that the frequency of manifestation of musculoskeletal symptoms in the neck (A) and right (B and D) and left (C and E) wrists of the cutters is significantly higher than that of the pickers and processors. In respect to both the right and left wrist, 100% of the cutters presented discomfort in the last 12 months, either between 8 and 30 days or more than 30 days.