RESULTS:
Total 141 patients included in the study . Age range in this study was
from 15 to 50 years with mean age of 30.191± 6.09 years and mean RIPASA
score was 5.375±1.77. Majority of patients were males 83(58.9%).
Percentages/frequency of patients according to education status in the
study showed uneducated 3(2.1%), primary education 50(35.5%),
secondary education 62(44%) and those with higher educational degrees
were 26(18.4%) and among socioeconomic status poor were 5(3.5%) ,
middle class 115(81.6%) and rich were 21(14.9%). Overall RIPASA score
diagnosed 28(19.9%) and histopathology diagnosed 27(19.1%) patients
with acute appendicitis, with a chi square score of 89.55 and p value of
0.00 and sensitivity of 85.2%, specificity 95.6%, diagnostic accuracy
94%, PPV 82.1% and NPV was 96.4%. Stratification with respect to age
range (15-30 years) of RIPASA score versus histopathology (n=87) showed
a p value: 0.53 , Sensitivity: 13.8%, Specificity: 82.7%, DA= 48.3%,
PPV= 44.4%, NPV= 48.9%. Stratification with respect to age range(31-50
years) of RIPASA score versus histopathology (n=54) showed p value:
0.38, Sensitivity: 29.6%, Specificity: 77.7%, DA= 53.7%, PPV= 57.1%,
NPV= 52.5%. Stratification with respect to education status
(uneducated) of RIPASA score versus histopathology (n=3) showed p value
1.00, Sensitivity: 33.3%, Specificity: 66.6%, DA= 50%, PPV= 50%,
NPV= 50%. Stratification with respect to education (primary) of RIPASA
score versus histopathology (n=50) , p value: 0.79, Sensitivity:
20%,Specificity: 82%, DA= 51%, PPV= 52.6%, NPV= 50.6%.
Stratification with respect to education (secondary) of RIPASA score
versus histopathology (n=62) , p=0.82, Sensitivity: 20.9%, Specificity:
80.6%, DA= 50.8%, PPV= 52%, NPV= 50.5%. Stratification with respect
to education (higher) of RIPASA score versus histopathology (n=26), p=
0.714, Sensitivity: 15.3%, Specificity: 80.7%, DA= 48.1%, PPV=
44.4%, NPV= 48.8%. Stratification with respect to socioeconomic status
(poor) of RIPASA score versus histopathology (n=5) m p = 1.00,
Sensitivity: 20%, Specificity: 80%, DA= 50%, PPV= 50%, NPV= 50%.
Stratification with respect to Socioeconomic status (middle) of RIPASA
score versus histopathology (n=115) with p value = 0.737, Sensitivity:
20%, Specificity: 81.7%, DA= 50.9%, PPV= 52.2%, NPV= 50.5%.
Stratification with respect to Socioeconomic status (rich) of RIPASA
score versus histopathology (n=21), p value = 0.707, Sensitivity: 19%,
Specificity: 76.1%, DA= 47.6%, PPV= 44.4%, NPV= 48.4%.
Stratification with respect to gender (male) of RIPASA score versus
histopathology (n=83), p value: 0.58, Sensitivity: 21.6%, Specificity:
74.6%, DA= 48.2%, PPV= 46.1%, NPV: 48.8%. Stratification with
respect to gender (female) of RIPASA score versus histopathology (n=58)
showed p value: 0.281, Sensitivity: 17.2%, Specificity: 89.6%, DA=
53.4%, PPV= 62.5%, NPV= 52%.