Value not inserting into sqlite from my application

NSString *query = @"INSERT INTO PatientInfo 


(PatientName,PatientId,PatientMobile,PatientEmail,Patientdates,Patientdesc) VALUES(?,?,?,?,?,?)";


   sqlite3_stmt *statement;


    if (sqlite3_prepare_v2(_sqldatabase, [query UTF8String], -1, &statement, nil) == SQLITE_OK)
    {
        NSLog(@"In Insert function");
        char* errmsg;

        sqlite3_bind_text(statement, 1, [userModel.PatientName UTF8String] ,-1, SQLITE_TRANSIENT);
        sqlite3_bind_text(statement, 2, [userModel.PatientId UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_text(statement, 3, [userModel.MobileNo UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_text(statement, 4, [userModel.PEmail UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_text(statement, 5, [userModel.date UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_text(statement, 6, [userModel.description UTF8String], -1, SQLITE_TRANSIENT);

        if(sqlite3_step(statement) != SQLITE_DONE )
        {
            sqlite3_finalize(statement);
            sqlite3_exec(_sqldatabase, "COMMIT", NULL, NULL, &errmsg);
            NSLog( @"addUser Error: %s", sqlite3_errmsg(_sqldatabase) );
            return NO;
        }
        else
        {
            sqlite3_finalize(statement);
            sqlite3_exec(_sqldatabase, "COMMIT", NULL, NULL, &errmsg);
            NSLog(@"Data Inserted into Table.PatientInfo");
            return YES;
        }

I am using the above code for inserting values into database but it is not inserting value why?