From: Cross-cultural validation of simplified Chinese version of spine functional index
 | VAS | FRI | NDI | ODI | PF | RP | BP | GH | VT | SF | RE | MH |
---|---|---|---|---|---|---|---|---|---|---|---|---|
SFI (Total n = 261) | −.481** | −.661** | −.610** | −.0.750** | .709** | .605** | .640** | .316** | .346** | .549** | .387** | .286** |
SFI (Neck pain n = 118) | −.628** | −.448** | −.694** |  | .612** | .617** | .631** | .274 | .310** | .530** | .325** | .348** |
SFI (Back pain n = 142) | −.612** | −.423** |  | −.770** | 0.539** | .549** | .629** | .397** | .489** | .594** | .466** | .384** |