Teacher: Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Abstract: Some patients converted from ventricular fibrillation to organized rhythms by defibrillation - trained ambulance technicians(EMT - Ds) will refibrillate before hospital arrival.The authors analyzed 271 cases of ventricular fibrillation managed by EMT - Ds working without paramedic back - up.Of 111 patients initially converted to organized rhythms, 19(17%) refibrillated, 11(58%) of whom were reconverted to perfusing rhythms, including nine of 11(82%) who had spontaneous pulses prior to refibrillation.Among patients initially converted to organized rhythms, hospital admission rates were lower for patients who refibrillated than for patients who did not(53 % versus 76% , P = NS), although discharge rates were virtually identical(37 % and 35 % , respectively).Scene - to - hospital transport times were not predictively associated with either the frequency of refibrillation or patient outcome.Defibrillation - trained EMTs can effectively manage refibrillation with additional shocks and are not at a significant disadvantage when paramedic back - up is not available.
Question: Does the abstract contain any numerical data?
Solution: Yes
Reason: As there are numerical figures and percentages (%), the answer is yes.

Now, solve this instance: Abstract: Maquet recommended 2-2.5 cm of anterior tibial tubercle elevation for patients with symptomatic osteoarthrosis of the patellofemoral joint. Fifty-three patients with osteoarthrosis were divided into three groups. The first 12 patients were treated by the classical Maquet procedure; 11 were totally relieved of patellofemoral pain, but there was one failure and five complications. In the second group of 32 patients, the patella was realigned within its groove to alter tracking of the patella to the proximal femoral condyles when necessary. Fish-mouthing technique and insertion of a drain after surgery were done. After a two-year follow-up examination, there were two failures and five complications. A third group of nine patients was treated with Ferguson's modification of Maquet's operation using a 1.25-cm tibial tubercle elevation through a transverse incision; two of the nine had complications, subsequently treated successfully by converting Ferguson's operation into the Maquet operation, as modified for Group II. The modified Maquet procedure can be an effective and reliable treatment of patellofemoral arthrosis with a relatively low incidence of complications.
Question: Does the abstract contain any numerical data?
Student:
Yes