## 3 Results
\begin{table}
\begin{tabular}{c c c c c c} \hline
**Study** & **Influence Factors** & **Design Sample Size** & \(p\)**-Value** & **Effect Estimate** & **Related with CTS** \\ \hline [PERSON] et al. [49] & BMI & 3391 cases & & & OR (95\% CI): & Yes \\ \hline \multirow{6}{*}{[PERSON] et al. [50]} & \multicolumn{4}{c}{Electrodiagnostic study} & \\  & & 25 untreated & & & \\  & & CTS patients & & & \\  & & & 50 patients with & & \\  & & no risk factor & & & \\  & & & (dioptable) & & \\  & & & 50 healthy volunteers & & \\ \hline \multirow{6}{*}{[PERSON] et al. [51]} & \multicolumn{4}{c}{Retrospective} & \\  & & cohort study & & OR (95\% CI) & \\  & & 1114 patients with CTR & \(p<0.05\) & Age: 1.02 (1.00–1.04) & Yes \\  & & 264 patients with cubital & BMI: 1.01 (0.97–1.05) & \\  & & tunnel surgery & Sex: 2.18 (1.34–3.55) & \\  & & 76 patients with both & & & \\ \hline \multirow{6}{*}{[PERSON] et al. [52]} & \multirow{6}{*}{Age, BMI, and sex} & Interview survey & & OR (95\% CI) & \\  & & 25,880 respondents (952 & Age 2.65–1.85) & \\  & & with CTS) & & (15.00–20.99) & \\  & & 25,880 respondents (952 & Women: 66.5\% & Yes \\  & & with CTS) & & (62.8\%–70.3\%) & \\  & & & & (Obese: 42.9\% & \\  & & & & (93.19–46.7\%) & \\ \hline \multirow{6}{*}{[PERSON] et al. [53]} & \multirow{6}{*}{BMI and sex} & \multicolumn{4}{c}{Correlation between} \\  & & Observational study & BMI: & SSS and BMI & \\  & & 145 patients with carpal & \(p<0.05\) & \(r=-0.16\) & \\  & & tunnel decompressions & Sex \(p=0.05\) & Mean change in SSS & \\  & & & & Women = –1.77 & \\  & & & & Men = –1.42 & \\ \hline [PERSON] et al. [54] & \multirow{2}{*}{Age} & Retrospective study 60 & & & OR (95\% CI): & \\  & & patients diagnosed with & \(p=0.001\) & 0.922 (0.877–0.969) & Yes \\  & & idiopathic CTS & & & \\ \hline [PERSON] et al. [55] & Sex & 620 patients with CTS & & & \\ \hline \end{tabular}
\end{table} 
Table 1: _Cont._ \begin{table}
\begin{tabular}{c c c c c} \hline
\begin{tabular}{c} CTS prevalence \\ Mer. 14\% \\ Women. 8.9\% \\ \end{tabular} \\ \hline \end{tabular}
\end{table} 
Table 1: _Cont._ \begin{table}
\begin{tabular}{c c c c c c} \hline
**Study** & **Influence Factors** & **Design Sample Size** & \(p\)**-Value** & **Effect Estimate** & **Related with CTS** \\ \hline  & & & & Crude incidence rate & \\  & & & 1.3 per 1000 (95\% CI: & \\  & & & & 1.0 to 1.5) in 1987 & \\  & & & 1.8 per 1000 (95\% CI: & \\  & & 355,201 listed patients & 1.7 to 2.0 in 2001 & \\  & & in 1987 & Males & \\  & & 364,998 listed patients & 0.6/95\% CI: & 0.5 to 0.7) & Yes \\  & & 364,998 listed patients & in 1987 (0.9) (95\% CI: & \\  & & & 0.8 to 1.0) in 2001 & \\  & & & Females & \\  & & & 1.9 (95\% CI: 1.7 to 2.1) & \\  & & & in 1987 2.8 (95\% CI: & \\  & & & 2.6 to 3.1) in 2001 & \\ \hline [PERSON] et al. [61] & Sex & 8801 cases & & \\ \hline [PERSON] et al. [62] & Age and sex & 479 patients & & \\ \hline [PERSON] et al. [63] & Age, BMI, and sex & 179 cleaners & OR (95\% CI) & \\  & & & older age 3.82 (1.43–10.22) & Yes \\  & & & BMI: 1.79 (0.85–3.78) & \\ \hline [PERSON] et al. [64] & Age \& BMI & Cross-sectional study & \(p<0.0001\) & Age: 9.2 (40–10.02) & Yes \\  & & 1142 participants & \(p<0.0001\) & BMI: 4.12 (2.0–10.80) & \\  & & & & CTS prevalence: 8.2\% & \\ \hline [PERSON] et al. [65] & Age and BMI & 900 subjects & Age and BMI: \(p<0.001\) &
\begin{tabular}{c} Unstandardized coefficient \\ Age: 0.01361 \\ BMI: 0.04/65 \\ \end{tabular} & Yes \\ \hline \end{tabular}
\end{table} 
Table 1: _Cont._