The purpose of an investigation by Young et al. (A-52) was to examine the efficacy and safety of a particular suburethral sling. Subjects were women experiencing stress incontinence who also met other criteria. Among the data collected were the following pre- and postoperative cystometric capacity (ml) values:

Pre Post Pre Post Pre Post Pre Post 350 321 340 320 595 557 475 344 700 483 310 336 315 221 427 277 356 336 361 333 363 291 405 514 362 447 339 280 305 310 312 402 361 214 527 492 200 220 385 282 304 285 245 330 270 315 274 317 675 480 313 310 300 230 340 323 367 330 241 230 792 575 524 383 387 325 313 298 275 140 301 279 535 325 323 349 307 192 411 383 328 250 438 345 312 217 250 285 557 410 497 300 375 462 600 618 569 603 302 335 440 414 393 355 260 178 471 630 300 250 232 252 320 362 540 400 379 335 332 331 405 235 275 278 682 339 451 400 351 310 557 381 Source: Data provided courtesy of Dr. Stephen B. Young.