Table 2.

Comparison of Cases With Normal Muscle to Those With Major and Minor Defects in Terms of Discrete and Continuous Birth Variables

Variable	Normal N = 131	Minor Defect Cases N=7 Mean +/− SD	Major Defect Cases N=22 Mean +/− SD
Continuous Variables
Age (years)	29.3±4.7	28.9±6.4	34.0±5.1**
Second Stage (minutes)	92.5±67.5	79.4±62.0	194.9±118.1**
Discrete Variables		N (%)	N (%)
Forceps Delivery	6 (4.6%)	0 (0.0%)	12 (54.5%)**
Anal Sphincter Laceration	45 (34.4%)	4 (57.1%)*	14 (63.6%)
Episiotomy	22 (16.8%)	5 (71.4%)*	13 (59.1%)

^*Minor differs from none at p< 0.05

^**Major differs from Minor at p< 0.05