human
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: BACKGROUND To our knowledge , verum acupuncture has never been directly compared with sham acupuncture and guideline -based conventional therapy in patients with chronic low back pain . METHODS A patient- and observer-blinded r and omized controlled trial conducted in Germany involving 340 outpatient practice s , including 1162 patients aged 18 to 86 years ( mean + /- SD age , 50 + /- 15 years ) with a history of chronic low back pain for a mean of 8 years . Patients underwent ten 30-minute sessions , generally 2 sessions per week , of verum acupuncture ( n = 387 ) according to principles of traditional Chinese medicine ; sham acupuncture ( n = 387 ) consisting of superficial needling at nonacupuncture points ; or conventional therapy , a combination of drugs , physical therapy , and exercise ( n = 388 ) . Five additional sessions were offered to patients who had a partial response to treatment ( 10%-50 % reduction in pain intensity ) . Primary outcome was response after 6 months , defined as 33 % improvement or better on 3 pain-related items on the Von Korff Chronic Pain Grade Scale question naire or 12 % improvement or better on the back-specific Hanover Functional Ability Question naire . Patients who were unblinded or had recourse to other than permitted concomitant therapies during follow-up were classified as nonresponders regardless of symptom improvement . RESULTS At 6 months , response rate was 47.6 % in the verum acupuncture group , 44.2 % in the sham acupuncture group , and 27.4 % in the conventional therapy group . Differences among groups were as follows : verum vs sham , 3.4 % ( 95 % confidence interval , -3.7 % to 10.3 % ; P = .39 ) ; verum vs conventional therapy , 20.2 % ( 95 % confidence interval , 13.4 % to 26.7 % ; P < .001 ) ; and sham vs conventional therapy , 16.8 % ( 95 % confidence interval , 10.1 % to 23.4 % ; P < .001 . CONCLUSIONS Low back pain improved after acupuncture treatment for at least 6 months . Effectiveness of acupuncture , either verum or sham , was almost twice that of conventional therapy OBJECTIVE To determine if acupuncture is an effective , safe adjunctive treatment to st and ard therapy for chronic low back pain ( LBP ) in older patients . METHODS The inclusion criteria for subjects were : ( i ) LBP > or = 12 weeks and ( ii ) age > or = 60 yr ; the exclusion criteria were ( i ) spinal tumour , infection or fracture and ( ii ) associated neurological symptoms . The subjects were r and omized to two groups . The control group of subjects continued their usual care as directed by their physicians , i.e. NSAIDs , muscle relaxants , paracetamol and back exercises . Subjects in the acupuncture group in addition received biweekly acupuncture with electrical stimulation for 5 weeks . Outcome was measured by the modified Rol and Disability Question naire ( RDQ ) at weeks 0 , 2 , 6 and 9 . The primary outcome measure was change in RDQ score between weeks 0 and 6 . RESULTS Fifty-five patients were enrolled , with eight drop-outs . Twenty-four subjects were r and omized to the acupuncture group and 23 were r and omized to the control group . Acupuncture subjects had a significant decrease in RDQ score of 4.1 + /- 3.9 at week 6 , compared with a mean decrease of 0.7 + /- 2.8 in the control group ( P = 0.001 ) . This effect was maintained for up to 4 weeks after treatment at week 9 , with a decrease in RDQ of 3.5 + /- 4.4 from baseline , compared with 0.43 + /- 2.7 in the control group ( P = 0.007 ) . The mean global transition score was higher in the acupuncture group , 3.7 + /- 1.2 , indicating greater improvement , compared with the score in the control group , 2.5 + /- 0.9 ( P < 0.001 ) . Fewer acupuncture subjects had medication-related side-effects compared with the control group . CONCLUSIONS Acupuncture is an effective , safe adjunctive treatment for chronic LBP in older patients Objectives To compare the effect of acupuncture ( manual and electroacupuncture ) with that of a non-penetrating sham ( ‘ placebo ’ needle ) in patients with osteoarthritic knee pain and disability who are blind to the treatment allocation . Methods Acupuncture naive patients with symptomatic and radiological evidence of osteoarthritis of the knee were r and omly allocated to a course of either acupuncture or non-penetrating sham acupuncture using a sheathed ‘ placebo ’ needle system . Acupuncture points for pain and stiffness were selected according to acupuncture theory for treating Bi syndrome . Both manual and electrical stimulation were used . Response was assessed using the WOMAC index for osteoarthritis of the knee , self reported pain scale , the EuroQol score and plasma β-endorphin . The effectiveness of blinding was assessed . Results There were 34 patients in each group . The primary end point was the change in WOMAC pain score after the course of treatment . Comparison between the two treatment groups found a significantly greater improvement with acupuncture ( mean difference 60 , 95 % CI 5 to 116 , P=0.035 ) than with sham . Within the acupuncture group there was a significant improvement in pain ( baseline 294 , mean change 95 , 95 % CI 60 to 130 , P<0.001 ) which was not seen by those who had sham acupuncture ( baseline 261 , mean change 35 , 95 % CI-10 to 80 , P=0.12 ) . Similar effects within group , but not between groups , were seen with the secondary end points of WOMAC stiffness , WOMAC function , and self reported pain . One month after treatment the between group pain difference had been lost ( mean difference 46 ; 95 % CI −9 to 100 , P=0.10 ) although the acupuncture group was still benefiting compared to baseline ( mean difference 59 ; 95 % CI 16 to 102 , P=0.009 ) . The EuroQol score , a generic measure of health related quality of life , was not altered by the treatments . A minority of patients correctly guessed their treatment group ( 41 % in the acupuncture group and 44 % in the control group ) . Plasma β-endorphin levels were not affected by either treatment . Conclusions Acupuncture gives symptomatic improvement for patients with osteoarthritis of the knee , and is significantly superior to non-penetrating sham acupuncture . The study did not confirm earlier reports of release of plasma β-endorphin during acupuncture Background Using an open r and omised controlled study , we examined the effectiveness of manual and electroacupuncture on symptom relief for patients with osteoarthritis of the knee . Methods Patients with symptomatic osteoarthritis of the knee were r and omised to one of three treatment groups . Group A had acupuncture alone , group B had acupuncture but continued on their symptomatic medication , and group C used their symptomatic medication for the first five weeks and then had a course of acupuncture added . Patients receiving acupuncture were treated twice weekly over five weeks . Needles were inserted ( with manual and electrical stimulation ) in acupuncture points for pain and stiffness , selected according to traditional acupuncture theory for treating Bi syndrome . Patients were assessed by a blinded observer before treatment , after five weeks ’ treatment and at one month follow up , using a visual analogue pain scale ( VAS ) and the Western Ontario McMaster ( WOMAC ) question naire for osteoarthritis of the knee . Results The 30 patients in our study were well matched for age , body mass index , disease duration , baseline VAS pain score and baseline WOMAC scores . Repeated measure analyses gave a highly significant improvement in pain ( VAS ) after the courses of acupuncture in groups A ( P=0.012 ) and B ( P=0.001 ) ; there was no change in group C until after the course of acupuncture , when the improvement was significant ( P=0.001 ) . Similarly significant changes were seen with the WOMAC pain and stiffness scores . These benefits were maintained during the one month after the course of acupuncture . Patients ’ rating of global assessment was higher than that of the acupuncturist . Conclusion We conclude that manual and electroacupuncture causes a significant improvement in the symptoms of osteoarthritis  of the knee , either on its own or as an adjunct therapy , with no loss of benefit after one month Background Acupuncture is increasingly being used for many conditions including chronic neck pain . However the evidence remains inconclusive , indicating the need for further well- design ed research . The aim of this study was to conduct a pilot r and omised controlled parallel arm trial , to establish key features required for the design and implementation of a large-scale trial on acupuncture for chronic neck pain . Methods Patients whose GPs had diagnosed neck pain were recruited from one general practice , and r and omised to receive usual GP care only , or acupuncture  ( up to 10 treatments over 3 months ) as an adjunctive treatment to usual GP care . The primary outcome measure was the Northwick Park Neck Pain Question naire ( NPQ ) at 3 months . The primary analysis was to determine the sample size for the full scale study . Results Of the 227 patients with neck pain identified from the GP data base , 28 ( 12.3 % ) consenting patients were eligible to participate in the pilot and 24 ( 10.5 % ) were recruited to the trial . Ten patients were r and omised to acupuncture , receiving an average of eight treatments from one of four acupuncturists , and 14 were r and omised to usual GP care alone . The sample size for the full scale trial was calculated from a clinical ly meaningful difference of 5 % on the NPQ and , from this pilot , an adjusted st and ard deviation of 15.3 % . Assuming 90 % power at the 5 % significance level , a sample size of 229 would be required in each arm in a large-scale trial when allowing for a loss to follow-up rate of 14 % . In order to achieve this sample , one would need to identify patients from data bases of GP practice s with a total population of 230,000 patients , or approximately 15 GP practice s roughly equal in size to the one involved in this study ( i.e. 15,694 patients ) . Conclusion This pilot study has allowed a number of recommendations to be made to facilitate the design of a large-scale trial , which in turn will help to clarify the existing evidence base on acupuncture for neck pain & NA ; Acupuncture is widely used by patients with neck pain , but there is a lack of information about its effectiveness in routine medical care . The aim was to investigate the effectiveness of acupuncture in addition to routine care in patients with chronic neck pain compared to treatment with routine care alone . We performed a r and omized controlled multicentre trial plus non‐r and omized cohort in general practice s in Germany . 14,161 patients with chronic neck pain ( duration > 6 months ) . Patients were r and omly allocated to an acupuncture group or a control group receiving no acupuncture . Patients in the acupuncture group received up to 15 acupuncture sessions over three months . Patients who did not consent to r and omization received acupuncture treatment . All subjects were allowed to receive usual medical care in addition to study treatment . Neck pain and disability ( NPAD Scale by Wheeler ) after three months . Of 14,161 patients ( mean age 50.9 ± 13.1 years , 68 % female ) 1880 were r and omized to acupuncture and 1886 to control , and 10,395 included into the non‐r and omized acupuncture group . At three months , neck pain and disability improved by 16.2 ( SE : 0.4 ) to 38.3 ( SE : 0.4 ) ; and by 3.9 ( SE : 0.4 ) to 50.5 ( SE : 0.4 ) , difference 12.3 ( p < 0.001 ) in the acupuncture and control group , respectively . Treatment success was essentially maintained through six months . Non‐r and omized patients had more severe symptoms at baseline and showed higher neck pain and disability improvement compared to r and omized patients . Treatment with acupuncture added to routine care in  patients with chronic neck pain  was associated with improvements in neck pain and disability compared to treatment with routine care alone OBJECTIVE The purpose of this study was to investigate the efficacy of acupuncture as an adjunctive therapy to st and ard care for the relief of pain and dysfunction in elderly patients with osteoarthritis ( OA ) of the knee . METHODS Seventy-three patients with symptomatic OA of the knee were r and omly assigned to treatment ( acupuncture ) or st and ard care ( control ) . Analysis was performed on last score carried forward to account for patients who dropped out before completion . Patients self-scored Western Ontario and McMaster Universities Osteoarthritis Index ( WOMAC ) and Lequesne indices at baseline and at 4 , 8 and 12 weeks . Patients in the control group were offered acupuncture treatment after 12 weeks . The data for these patients are pooled with those from the original acupuncture group for within-group analysis . RESULTS Patients r and omized to acupuncture improved on both WOMAC and Lequesne indices compared to those who received st 
    Output:
    
agent
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: BACKGROUND To our knowledge , verum acupuncture has never been directly compared with sham acupuncture and guideline -based conventional therapy in patients with chronic low back pain . METHODS A patient- and observer-blinded r and omized controlled trial conducted in Germany involving 340 outpatient practice s , including 1162 patients aged 18 to 86 years ( mean + /- SD age , 50 + /- 15 years ) with a history of chronic low back pain for a mean of 8 years . Patients underwent ten 30-minute sessions , generally 2 sessions per week , of verum acupuncture ( n = 387 ) according to principles of traditional Chinese medicine ; sham acupuncture ( n = 387 ) consisting of superficial needling at nonacupuncture points ; or conventional therapy , a combination of drugs , physical therapy , and exercise ( n = 388 ) . Five additional sessions were offered to patients who had a partial response to treatment ( 10%-50 % reduction in pain intensity ) . Primary outcome was response after 6 months , defined as 33 % improvement or better on 3 pain-related items on the Von Korff Chronic Pain Grade Scale question naire or 12 % improvement or better on the back-specific Hanover Functional Ability Question naire . Patients who were unblinded or had recourse to other than permitted concomitant therapies during follow-up were classified as nonresponders regardless of symptom improvement . RESULTS At 6 months , response rate was 47.6 % in the verum acupuncture group , 44.2 % in the sham acupuncture group , and 27.4 % in the conventional therapy group . Differences among groups were as follows : verum vs sham , 3.4 % ( 95 % confidence interval , -3.7 % to 10.3 % ; P = .39 ) ; verum vs conventional therapy , 20.2 % ( 95 % confidence interval , 13.4 % to 26.7 % ; P < .001 ) ; and sham vs conventional therapy , 16.8 % ( 95 % confidence interval , 10.1 % to 23.4 % ; P < .001 . CONCLUSIONS Low back pain improved after acupuncture treatment for at least 6 months . Effectiveness of acupuncture , either verum or sham , was almost twice that of conventional therapy OBJECTIVE To determine if acupuncture is an effective , safe adjunctive treatment to st and ard therapy for chronic low back pain ( LBP ) in older patients . METHODS The inclusion criteria for subjects were : ( i ) LBP > or = 12 weeks and ( ii ) age > or = 60 yr ; the exclusion criteria were ( i ) spinal tumour , infection or fracture and ( ii ) associated neurological symptoms . The subjects were r and omized to two groups . The control group of subjects continued their usual care as directed by their physicians , i.e. NSAIDs , muscle relaxants , paracetamol and back exercises . Subjects in the acupuncture group in addition received biweekly acupuncture with electrical stimulation for 5 weeks . Outcome was measured by the modified Rol and Disability Question naire ( RDQ ) at weeks 0 , 2 , 6 and 9 . The primary outcome measure was change in RDQ score between weeks 0 and 6 . RESULTS Fifty-five patients were enrolled , with eight drop-outs . Twenty-four subjects were r and omized to the acupuncture group and 23 were r and omized to the control group . Acupuncture subjects had a significant decrease in RDQ score of 4.1 + /- 3.9 at week 6 , compared with a mean decrease of 0.7 + /- 2.8 in the control group ( P = 0.001 ) . This effect was maintained for up to 4 weeks after treatment at week 9 , with a decrease in RDQ of 3.5 + /- 4.4 from baseline , compared with 0.43 + /- 2.7 in the control group ( P = 0.007 ) . The mean global transition score was higher in the acupuncture group , 3.7 + /- 1.2 , indicating greater improvement , compared with the score in the control group , 2.5 + /- 0.9 ( P < 0.001 ) . Fewer acupuncture subjects had medication-related side-effects compared with the control group . CONCLUSIONS Acupuncture is an effective , safe adjunctive treatment for chronic LBP in older patients Objectives To compare the effect of acupuncture ( manual and electroacupuncture ) with that of a non-penetrating sham ( ‘ placebo ’ needle ) in patients with osteoarthritic knee pain and disability who are blind to the treatment allocation . Methods Acupuncture naive patients with symptomatic and radiological evidence of osteoarthritis of the knee were r and omly allocated to a course of either acupuncture or non-penetrating sham acupuncture using a sheathed ‘ placebo ’ needle system . Acupuncture points for pain and stiffness were selected according to acupuncture theory for treating Bi syndrome . Both manual and electrical stimulation were used . Response was assessed using the WOMAC index for osteoarthritis of the knee , self reported pain scale , the EuroQol score and plasma β-endorphin . The effectiveness of blinding was assessed . Results There were 34 patients in each group . The primary end point was the change in WOMAC pain score after the course of treatment . Comparison between the two treatment groups found a significantly greater improvement with acupuncture ( mean difference 60 , 95 % CI 5 to 116 , P=0.035 ) than with sham . Within the acupuncture group there was a significant improvement in pain ( baseline 294 , mean change 95 , 95 % CI 60 to 130 , P<0.001 ) which was not seen by those who had sham acupuncture ( baseline 261 , mean change 35 , 95 % CI-10 to 80 , P=0.12 ) . Similar effects within group , but not between groups , were seen with the secondary end points of WOMAC stiffness , WOMAC function , and self reported pain . One month after treatment the between group pain difference had been lost ( mean difference 46 ; 95 % CI −9 to 100 , P=0.10 ) although the acupuncture group was still benefiting compared to baseline ( mean difference 59 ; 95 % CI 16 to 102 , P=0.009 ) . The EuroQol score , a generic measure of health related quality of life , was not altered by the treatments . A minority of patients correctly guessed their treatment group ( 41 % in the acupuncture group and 44 % in the control group ) . Plasma β-endorphin levels were not affected by either treatment . Conclusions Acupuncture gives symptomatic improvement for patients with osteoarthritis of the knee , and is significantly superior to non-penetrating sham acupuncture . The study did not confirm earlier reports of release of plasma β-endorphin during acupuncture Background Using an open r and omised controlled study , we examined the effectiveness of manual and electroacupuncture on symptom relief for patients with osteoarthritis of the knee . Methods Patients with symptomatic osteoarthritis of the knee were r and omised to one of three treatment groups . Group A had acupuncture alone , group B had acupuncture but continued on their symptomatic medication , and group C used their symptomatic medication for the first five weeks and then had a course of acupuncture added . Patients receiving acupuncture were treated twice weekly over five weeks . Needles were inserted ( with manual and electrical stimulation ) in acupuncture points for pain and stiffness , selected according to traditional acupuncture theory for treating Bi syndrome . Patients were assessed by a blinded observer before treatment , after five weeks ’ treatment and at one month follow up , using a visual analogue pain scale ( VAS ) and the Western Ontario McMaster ( WOMAC ) question naire for osteoarthritis of the knee . Results The 30 patients in our study were well matched for age , body mass index , disease duration , baseline VAS pain score and baseline WOMAC scores . Repeated measure analyses gave a highly significant improvement in pain ( VAS ) after the courses of acupuncture in groups A ( P=0.012 ) and B ( P=0.001 ) ; there was no change in group C until after the course of acupuncture , when the improvement was significant ( P=0.001 ) . Similarly significant changes were seen with the WOMAC pain and stiffness scores . These benefits were maintained during the one month after the course of acupuncture . Patients ’ rating of global assessment was higher than that of the acupuncturist . Conclusion We conclude that manual and electroacupuncture causes a significant improvement in the symptoms of osteoarthritis  of the knee , either on its own or as an adjunct therapy , with no loss of benefit after one month Background Acupuncture is increasingly being used for many conditions including chronic neck pain . However the evidence remains inconclusive , indicating the need for further well- design ed research . The aim of this study was to conduct a pilot r and omised controlled parallel arm trial , to establish key features required for the design and implementation of a large-scale trial on acupuncture for chronic neck pain . Methods Patients whose GPs had diagnosed neck pain were recruited from one general practice , and r and omised to receive usual GP care only , or acupuncture  ( up to 10 treatments over 3 months ) as an adjunctive treatment to usual GP care . The primary outcome measure was the Northwick Park Neck Pain Question naire ( NPQ ) at 3 months . The primary analysis was to determine the sample size for the full scale study . Results Of the 227 patients with neck pain identified from the GP data base , 28 ( 12.3 % ) consenting patients were eligible to participate in the pilot and 24 ( 10.5 % ) were recruited to the trial . Ten patients were r and omised to acupuncture , receiving an average of eight treatments from one of four acupuncturists , and 14 were r and omised to usual GP care alone . The sample size for the full scale trial was calculated from a clinical ly meaningful difference of 5 % on the NPQ and , from this pilot , an adjusted st and ard deviation of 15.3 % . Assuming 90 % power at the 5 % significance level , a sample size of 229 would be required in each arm in a large-scale trial when allowing for a loss to follow-up rate of 14 % . In order to achieve this sample , one would need to identify patients from data bases of GP practice s with a total population of 230,000 patients , or approximately 15 GP practice s roughly equal in size to the one involved in this study ( i.e. 15,694 patients ) . Conclusion This pilot study has allowed a number of recommendations to be made to facilitate the design of a large-scale trial , which in turn will help to clarify the existing evidence base on acupuncture for neck pain & NA ; Acupuncture is widely used by patients with neck pain , but there is a lack of information about its effectiveness in routine medical care . The aim was to investigate the effectiveness of acupuncture in addition to routine care in patients with chronic neck pain compared to treatment with routine care alone . We performed a r and omized controlled multicentre trial plus non‐r and omized cohort in general practice s in Germany . 14,161 patients with chronic neck pain ( duration > 6 months ) . Patients were r and omly allocated to an acupuncture group or a control group receiving no acupuncture . Patients in the acupuncture group received up to 15 acupuncture sessions over three months . Patients who did not consent to r and omization received acupuncture treatment . All subjects were allowed to receive usual medical care in addition to study treatment . Neck pain and disability ( NPAD Scale by Wheeler ) after three months . Of 14,161 patients ( mean age 50.9 ± 13.1 years , 68 % female ) 1880 were r and omized to acupuncture and 1886 to control , and 10,395 included into the non‐r and omized acupuncture group . At three months , neck pain and disability improved by 16.2 ( SE : 0.4 ) to 38.3 ( SE : 0.4 ) ; and by 3.9 ( SE : 0.4 ) to 50.5 ( SE : 0.4 ) , difference 12.3 ( p < 0.001 ) in the acupuncture and control group , respectively . Treatment success was essentially maintained through six months . Non‐r and omized patients had more severe symptoms at baseline and showed higher neck pain and disability improvement compared to r and omized patients . Treatment with acupuncture added to routine care in  patients with chronic neck pain  was associated with improvements in neck pain and disability compared to treatment with routine care alone OBJECTIVE The purpose of this study was to investigate the efficacy of acupuncture as an adjunctive therapy to st and ard care for the relief of pain and dysfunction in elderly patients with osteoarthritis ( OA ) of the knee . METHODS Seventy-three patients with symptomatic OA of the knee were r and omly assigned to treatment ( acupuncture ) or st and ard care ( control ) . Analysis was performed on last score carried forward to account for patients who dropped out before completion . Patients self-scored Western Ontario and McMaster Universities Osteoarthritis Index ( WOMAC ) and Lequesne indices at baseline and at 4 , 8 and 12 weeks . Patients in the control group were offered acupuncture treatment after 12 weeks . The data for these patients are pooled with those from the original acupuncture group for within-group analysis . RESULTS Patients r and omized to acupuncture improved on both WOMAC and Lequesne indices compared to those who received st 
    Output:
    